Document:

<PAGE>
                                                                     EXHIBIT 4.4

                            [FORTIS BANK LETTERHEAD]

Kwanasia Electronics Company Limited
Units 10-14, 19/F.,
Kwong Sang Hong Centre,
151-153 Hoi Bun Road,
Kwun Tong, Kowloon.

Date     1 November, 2001
Ref.     KEM-1/KA/CRA
Subject  General Banking Facilities

Dear Sirs,

We refer to our recent discussion and are pleased to confirm that subject to
execution of satisfactory documentation we agree to grant you general banking
facilities under the following terms and conditions:-

OVERDRAFT FACILITIES &/OR STANDBY LETTER OF CREDIT ISSUED ON YOUR BEHALF

OD Limit/L/C Amount : HKD5,000,000.-

Interest on Overdraft Facilities

Our HKD Prime Rate OR our prevailing funding cost, whichever is the higher, plus
0.25%, subject to fluctuation at our discretion, payable monthly.

IMPORT FACILITIES AGAINST 100% SALES CONTRACTS AND/OR INVOICE DISCOUNTING
FACILITIES

Limit:               HKD5,000,000.- for the opening of letters of credit on such
                     terms and conditions as we may from time to time stipulate,
                     the delivery of goods against signing of trust receipts,
                     invoice trust receipts, negotiation of letters of credit
                     under letters of guarantee, advances against export
                     documents and/or discounting of invoices (up to 80%,
                     maximum of 90 days) from restricted buyers listed below.
                     In-house bills with related companies, including but not
                     limited to Jetcrown Industrial Ltd, Deswell Industries Inc,
                     and Kwanta Precision Metal Products Co Ltd, are not
                     allowed.

                     Invoice Trust Receipts facilities can be drawn against
                     invoices from approved suppliers with payment made directly
                     to their accounts.

<PAGE>
Date     1 November 2001
Subject  General Banking Facilities
         Kwanasia Electronics Company Limited
Pages    2/5

                        Invoice Discounting buyers' list

                        1) Huacomm Telecommunications Engineering (HK) Ltd.

                        2) One Link Information Ltd.

                        3) Harbour Networks Ltd.

                        4) Beijing Harbour Networks Co. Ltd.

                        5) Huawei Technologies Co. Ltd.

                        6) Huawei Tech. Investment Co. Ltd.

                        Please note that the maximum period for repayment of
                        Drafts, Trust Receipts and Invoice Trust Receipts is 90
                        days. For HKD bills, interest will be calculated at our
                        Hong Kong Interbank Offered Rate, plus 3%; for foreign
                        currency bills, interest will be calculated at our
                        London Interbank Offered Rate, plus 3%, both are subject
                        to fluctuation at our discretion.

The unused portion of the standby letter of credit facilities can also be
available to you for import facilities without the support of sales contract and
export facilities on the terms and conditions as above mentioned.

<TABLE>
<S>                                            <C>
L/C opening commission:
On first USD50,000.-                           1/4%
From USD50,001 to USD150,000.-                 1/12%
On balance                                     1/24%

In lieu of exchange commission:                1/8%

 Standby L/C commission: (on monthly basis)
 On first USD50,000.-                          1/8%
 On balance                                    1/16%

 Invoice Discounting Commission:               1/8% flat (minimum HKD300.-)
</TABLE>

Any amount unpaid on due date will be subject to additional interest at the
Bank's then prevailing overdue interest rate and will be compounded monthly. We
may, without prejudice to our rights, increase the interest rate on the entire
outstanding if any amount becomes overdue.

Whilst the aforesaid facilities are outstanding, all the goods held to our order
in relation to such facilities will be insured in such amount as we may in our
discretion so stipulate.

<PAGE>
Date     1 November 2001
Subject  General Banking Facilities
         Kwanasia Electronics Company Limited
Pages    3/5

A set up fee of HKD5,000.- will be charged upon implementation of the above
facilities.

An annual facilities fee of HKD8,000.- p.a. (subject to revision at our
discretion) will be charged to your current account starting from one year after
implementation of the above facilities, which is non-refundable.

The above facilities will be made available to you subject to charge to us of a
fixed deposit for HKD5,000,000.- (or its equivalent amount in USD or 110%
equivalent in other currencies acceptable to us) together with interest accrued
thereon.

As additional support for the aforesaid facilities, we shall require undertaking
from yourgoodselves, Deswell Industries Inc. and Mr. Lee Shu Kwan & Mr. Tam
Man Chi, by signing on the attached duplicate of this letter, that:-

a)      Deswell Industries Inc. will not give corporate guarantee to any
        financial institutions or banks for the account of your Company unless
        with our prior written consent;

b)      Mr. Lee Shu Kwan and Mr. Tam Man Chi will not give personal guarantee to
        any financial institutions or banks for the account of your Company
        unless with our prior written consent;

c)      you will immediately notify us of any change of directorship or
        shareholdership or any amendment of the Memorandum and Articles of
        Association of your Company; and

d)      you will channel through us an annual bills turnover of not less than
        HKD18 Million.

We reserve the overriding right to (a) demand immediate repayment of any or all
of the amount outstanding in respect of the facilities together with all accrued
interest and other moneys payable and (b) revise the terms and conditions
applicable to the facilities or withdraw the facilities, in each case at any
time at our discretion.

Without prejudice to any of the provisions herein, all moneys outstanding
hereunder will automatically become immediately due and payable on our receipt
of any claim or notice of any interest by any third party (including without
limitation notice to recover any amount under any Ordinance, garnishee order
nisi, assignment or any security interest) affecting any of our liabilities to
you or any other party who has provided any guarantee or other security in
respect of your obligations to us.

Please note that by signing and returning to us a copy of this letter, you are
consenting to our providing to any guarantor or provider of security in respect
of any loan or credit facilities extended to you the following:

<PAGE>
Date     1 November 2001
Subject  General Banking Facilities
         Kwanasia Electronics Company Limited
Pages    4/5

(a)     a copy of the contract evidencing the obligations to be guaranteed or
        secured or a summary thereof;

(b)     a copy of any formal demand for overdue payment which is sent to you
        after you have failed to settle an overdue amount following a customary
        reminder; and

(c)     from time to time on request by the guarantor or provider of security, a
        copy of the latest statement of account provided to you.

We may, without prior notice, at any time (including without limitation when you
default in the payment of any sum payable) set off any of our liabilities (in
any currency, wherever situated or payable, and whether or not matured) to you
against any liability owed by you to us whether such liability be actual or
contingent and now or in future. Such liabilities in each case include without
limitation joint liabilities. For this purpose, we may use all or any part of
such liability to buy such other currencies as may be necessary to effect such
set off at our spot rate. If any such liability is unliquidated or
unascertained, we may set off the amount estimated by us of such liability.
Nothing in this provision is intended to give us any security of proprietary
interest whether by way of mortgage, charge or otherwise. This provision
operates by way of contract and self-help remedies.

To keep our file updated, we would be pleased to receive your audited financial
statements not later than six months after the fiscal year-end.

Kindly return to us, duly signed, the enclosed duplicate of this letter by
yourgoodselves, Deswell Industries Inc. and Mr. Lee Shu Kwan & Mr. Tam Man Chi
to signify your agreement to the above and for Deswell Industries Inc. and Mr.
Lee Shu Kwan & Mr. Tam Man Chi agree to provide the joint and several warranties
and undertakings also set out above. If no signed confirmation is received from
you, within one month from the date of this letter or if after you have returned
to us on time the signed duplicate of this letter, the facilities are not drawn
down within three months from the date hereof, the facilities will be treated as
cancelled.

Yours faithfully,

For FORTIS BANK ASIA HK

/s/ KWOK WAI NG                   /s/ CHI MING PETER SHIN
---------------------------       -------------------------------
NG, Kwok Wai                      SHIN, Chi Ming Peter

<PAGE>

Date      1 November, 2001
Subject   General Banking Facilities
          Kwanasia Electronics Company Limited

Pages 5/5

We hereby confirm and accept
all the terms and conditions set out above

For and on behalf of
KWANASIA ELECTRONICS CO., LTD.

/s/ TAM MAN CHI      LEE SHU KWAN
----------------------------------------
                  Authorised Signature(s)

----------------------------------------
Kwanasia Electronics Company Limited
Date:

We jointly and severally warrant to and undertake
with you the matters set out above:

For and on behalf of
DESWELL INDUSTRIES, INC.

/s/ LAU PUI HON                            /s/ LEE SHU KWAN         TAM MAN CHI
----------------------------------------   ------------------------------------
                 Authorised Signature(s)   Mr. Lee Shu Kwan & Mr. Tam Man Chi
Deswell Industries Inc.

Date: Nov. 7, 2001                         Date:<PAGE>
                                                                     EXHIBIT 4.5

                         [CITIC KA WAH BANK LETTERHEAD]

PRIVATE & CONFIDENTIAL

Our Ref   :  CBG/TF/GN/01/813
Date      :  12th November 2001

KWANASIA ELECTRONICS COMPANY LIMITED

Units 10-14, 19th Floor
Kwong San Hong Centre
151-153 Hoi Bun Road
Kwun Tong
Kowloon

Attention: Mr. Lee Shu Kwan, Managing Director

Dear Mr. Lee,

RE:  FACILITY LETTER

We, CITIC Ka Wah Bank Limited, are pleased to offer you the general banking
facilities ("Facilities") on the following terms and conditions.

1.   FACILITIES

1.1  The Facilities are available to the borrower by way of the following:

                                   EXTENT OF FACILITIES
                                   --------------------
     Item 1      Documentary Credit plus (90 days inclusive of usance period)
                 Trust Receipt Facility and Invoice Discount - Export Facility
                 on approved buyers up to the total extent of HKD4,000,000.00

                                                                               1
<PAGE>
<Table>

     <S>         <C>
                 Remarks:

                 a  Usance L/C tenor and T/R tenor in aggregate shall not exceed 90
                    days.

                 b  For Invoice Discounting Facility:

                    i)   Against restricted buyers and maximum up to 80% of invoice
                         value.

                    ii)  The maximum tenor is up to 90 days or not later than invoice
                         settlement date, whichever is shorter.

                    iii) The original/certified true copy of invoice from the
                         borrower and a duly signed export invoice discounting form
                         of CITIC Ka Wah Bank Limited must be submitted.

                    iv)  Invoice submitted must indicate that the repayment from
                         restricted buyers is in form of T/T or CHATS directly to
                         borrower's account with CITIC Ka Wah Bank Limited.

                    v)   Evidence of goods received, such as submission of borrower's
                         delivery order, transport document (photocopy is acceptable)
                         or cargo receipt, countersigned by the restricted buyers
                         must be provided.

     Item 2      Standby Letter of Credit of HKD8,000,000.00
</TABLE>

1.2  This Facility Letter, upon your signing, shall supersede all other
     previously signed facility letters (if any). Save and except the Facilities
     hereby offered, all existing general banking facilities granted to you (if
     any) shall be terminated and repayable forthwith, unless we agree
     otherwise.

1.3  The Facilities will be subject to review periodically as we deem fit at our
     sole and absolute discretion. The Facilities shall expire and be repayable
     forthwith as and when we have given you notice of termination.
     Nevertheless, we reserve the right at our sole and absolute discretion to
     increase, reduce, cancel and/or demand repayment of the Facilities or any
     part or parts thereof at any time to be effective forthwith by notice to
     you.

2.   INTEREST

2.1  Interest will be charged on the Facilities, subject to fluctuation, at the
     following respective rates ("Contract Rate"):

                                                                               2

<PAGE>
     ---------------------------------------------------------------------------
                                   CONTRACT RATE
     ---------------------------------------------------------------------------
       For item 1   3% over and above Hong Kong Inter Bank Offering Rate for
                    Hong Kong Dollar / London Inter Bank Offering Rate for other
                    currencies per annum.
     ---------------------------------------------------------------------------

2.2  Interest will accrue from day to day and be calculated on the basis of the
     actual number of days elapsed and a 365-day year for Hong Kong Dollar or
     360-day year for US Dollar or according to the market practice for
     calculation of other currencies.

3.   CHARGES AND COMMISSIONS

3.1  Charges and commissions will be levied and payable as set out in the
     following table. Once paid, such charges and commissions shall not be
     refundable under any circumstances.

     ---------------------------------------------------------------------------
                              CHARGES AND COMMISSIONS
     ---------------------------------------------------------------------------
       For item 1   i)   Documentary Credit Opening Commission charged at 1/4%
                         on the first USD50,000 or equivalent, 1/12% on
                         USD50,001 to USD150,000 or equivalent and 1/24%
                         thereafter shall be paid upon opening of each
                         documentary credit.

                    ii)  Usance Documentary Credit Acceptance Commission
                         charged at 1/16% per month on import bills amount shall
                         be paid upon our acceptance of the usance bills
                         documents.

                    iii) Commission In Lieu of Exchange charged at 1/8% shall
                         be paid upon repayment, if applicable.

                    iv)  Invoice Discounting Handling Commission charged at
                         1/8% shall be paid upon drawdown (minimum HKD300 per
                         transaction).
     ---------------------------------------------------------------------------

                                                                               3

<PAGE>
     For Item 2     Standby Letter of Credit Opening Commission charged at 1.5%
                    per annum or 0.125% per month flat shall be paid upon
                    opening of each documentary credit.

     For all items  Arrangement Fee of HKD8,000.00 shall be paid upon your
                    signing of this Facility Letter.

3.2  Notwithstanding anything herein contained, we reserve the right to vary
     the amount of the charges and commissions set out in the aforesaid table
     from time to time at our absolute discretion by giving prior written
     notice.

3.3  If applicable, you are also required to pay those charges set out in our
     Banking Charges Schedule published by us from time to time.

4.   REPAYMENT

4.1  Without prejudice to Clause 1.4, the Facilities together with accrued
     interest shall be repaid according to the following Repayment Schedule:

                                 REPAYMENT SCHEDULE

     For all items  Each advance together with accrued interest shall be repaid
                    on or before the date specified in the relevant application.

5.   DEFAULT INTEREST

5.1  We reserve the right to collect default interest on any sum (whether
     principal or interest) overdue and not paid under any of the Facilities at
     the following rates:-

                                                                               4
<PAGE>
     ---------------------------------------------------------------------------
                               DEFAULT INTEREST RATE
     ---------------------------------------------------------------------------
       For all items     2% over and above the Contract Rate
     ---------------------------------------------------------------------------

5.2  Default interest shall be calculated on basis of the actual number of days
     elapsed and a 365-day year for Hong Kong Dollar or 360-day year for US
     Dollar or according to the market practice for calculation of other
     currencies.

6.   SECURITY

6.1  The Facilities are granted against the following securities ("the
     Securities"):

     ---------------------------------------------------------------------------
                                     SECURITIES
     ---------------------------------------------------------------------------
          i.   Corporate Guarantees from Bright Oriental Enterprises Limited,
               Dongguan Kwan Hong Electronics Company Limited and Integrated
               International Limited ("Corporate Guarantors") for repayment of
               principal amount up to the extent of HKD12,000,000.00 and accrued
               interest and default interest thereon and all other costs and
               expenses.
     ---------------------------------------------------------------------------
          ii.  Fixed charge of the following deposit ("Deposit") placed with us
               together with interest accrued or to be accrued thereon.

               Deposit:
               Charge on Cash Deposit for amount not less than HKD5,000,000.00
               in name of Kwanasia Electronics Company Limited ("Depositor")
     ---------------------------------------------------------------------------

6.2  We reserve the right to request for any additional securities as we may
     deem fit at our sole and absolute discretion from time to time.

                                                                               5
<PAGE>
6.3  Nothing in this Facility Letter shall release, terminate or invalidate any
     security given or security document signed before the date of this Facility
     Letter. If there is any such security or security document, the same shall
     continue to secure the Facilities granted or to be granted under this
     Facility Letter.

7.   CONDITIONS PRECEDENT

7.1  The Facilities will be available for drawing when we have received the
     following documents in form and substance satisfactory to us:

     ---------------------------------------------------------------------------
                                     DOCUMENTS
     ---------------------------------------------------------------------------
          i.    The duplicate copy of this Facility Letter duly signed by you
                indicating your acceptance of the Facilities on terms and
                conditions set out herein and duly signed by the guarantor and
                other security provider (if any).
     ---------------------------------------------------------------------------
          ii.   Your director's resolutions.
     ---------------------------------------------------------------------------
          iii.  Certified copy of your Memorandum and Article of Association.
     ---------------------------------------------------------------------------
          iv.   Certified copy of your Business Registration Certificate.
     ---------------------------------------------------------------------------
          v.    Certified copy of your Certificate of Incorporation.
     ---------------------------------------------------------------------------
          vi.   General Commercial Agreement duly signed by you.
     ---------------------------------------------------------------------------
          vii.  Acknowledgement of General Terms & Conditions duly signed by
                you.
     ---------------------------------------------------------------------------
          viii. Mandate (Corporate) duly signed by you.
     ---------------------------------------------------------------------------
          ix.   Corporate Guarantees duly executed by the Corporate Guarantors
                together with directors' and shareholders' resolutions (if
                applicable).
     ---------------------------------------------------------------------------

                                                                               6

<PAGE>
     ---------------------------------------------------------------------------
          x.    Charge on Cash Deposit(s) to secure Liabilities of the
                Depositor(s) created in our favour duly executed by all relevant
                parties together with directors' and shareholders' resolutions
                (if applicable).
     ---------------------------------------------------------------------------
          xi.   Certified copy of Memorandum and Article of Association of the
                Corporate Guarantors.
     ---------------------------------------------------------------------------
          xii.  Certified copy of Business Registration Certificate of the
                Corporate Guarantors.
     ---------------------------------------------------------------------------
          xiii. Certified copy of Certificate of Incorporation of the Corporate
                Guarantors.
     ---------------------------------------------------------------------------
          xiv.  Any other documents as may be required by the Bank from time to
                time.
     ---------------------------------------------------------------------------

8.   UNDERTAKING

8.1  The borrower, Mr. Lee Shu Kwan and Mr. Tam Man Chi undertake that their
     obligations under the Facilities shall, at all times, rank at least pari
     passu in all respects with all other future obligations.

8.2  Mr. Lee Shu Kwan and Mr. Tam Man Chi undertake that they will not offer
     Personal Guarantee to any other banks for the account of Kwanasia
     Electronics Company Limited.

8.3  Deswell Industries, Inc. undertakes that it will give the Bank prior
     notice if it offers corporate guarantee and/or personal guarantee of their
     directors to any other banks or financial institutions for and on behalf of
     Kwanasia Electronics Company Limited.

8.4  The Borrower undertakes to inform the Bank immediately of any changes of
     the Borrower's directors or beneficial shareholders (including but not
     limited to Deswell Industries Inc.) or amendment of its Memorandum or
     Articles of Association.

                                                                               7
<PAGE>
9.   GOVERNING LAW

9.1  The Facility Letter shall be governed by the laws of Hong Kong SAR. Each
party hereby irrevocably submits to the non-exclusive jurisdiction of the courts
of Hong Kong SAR as regards any claim or matter arising hereunder.

Please signify your agreement and acceptance of this offer by signing and
returning to us the duplicate of this Facility Letter on or before 30 NOVEMBER
2001 to 40/F., Cosco Tower, 183 Queen's Road Central, Hong Kong, Attention:
Corporate Banking - Trade Finance and Multinational Group, failing which this
offer shall lapse.

Should you have any queries, please do feel free to contact our Mr. Francis
Leung, Section Head - 3, Trade Finance Group or Mr. Geoffrey Ng, Relationship
Manager at 2909 6210 or 2909 6256 respectively at any time.

Regards,

Yours faithfully,
For and on behalf of
CITIC Ka Wah Bank Limited

/s/ GEOFFREY NG                         /s/ FRANCIS LEUNG
-----------------------------           ------------------------------
Geoffrey Ng                             Francis Leung
Relationship Manager                    Section Head - 3
Trade Finance Group                     Trade Finance Group
Corporate Banking                       Corporate Banking

                                                                               8
<PAGE>
After due and careful consideration of the contents of this letter, I/we agree
to accept the Facilities and shall be bound by all the terms and conditions
herein set out.

Borrower & Depositor:

FOR AND ON BEHALF OF
KWANASIA ELECTRONICS CO., LTD.

    TAM MAN CHI      LEE SHU KWAN
-------------------------------------
       AUTHORISED SIGNATURE(S)

_____________________________________
Kawanasia Electronics Company Limited
(Authorized Signatory and Co. Chop)
Date:

Acknowledged and Counter-signed by         Acknowledged and Counter-signed by

                                           Corporate Guarantor:

FOR AND ON BEHALF OF                       FOR AND ON BEHALF OF
DESWELL INDUSTRIES, INC.                   BRIGHT ORIENTAL ENTERPRISES LIMITED

         LAU PUI HON                                [SIGNATURE ILLEGIBLE]
----------------------------------------   -------------------------------------
              AUTHORISED SIGNATURE(S)                    AUTHORIZED SIGNATURE(S)

________________________________________   _____________________________________
Deswell Industries, Inc.                   Bright Oriental Enterprises Limited
(Authorized Signatory and Co. Chop)        (Authorized Signatory and Co. Chop)
Date: Nov. 21, 2001                        Date:

                                                                               9
<PAGE>

After due and careful consideration of the contents of this letter, I/we agree
to accept the Facilities and shall be bound by all the terms and conditions
herein set out.

Acknowledged and Counter-signed by          Acknowledged and Counter-signed by
Corporate Guarantor:                        Corporate Guarantor:

                                                For and on behalf of
                                                INTEGRATED INTERNATIONAL LIMITED

(COMPANY SEAL)                                  /s/  TAM MAN CHI
                                                --------------------------------
                                                         Authorized Signature(s)

/S/  [SIGNATURE ILLEGIBLE]
------------------------------------        ------------------------------------
Dongguan Kwan Hong Electronics              Integrated International Limited
Company Limited                             (Authorized Signatory and Co. Chop)
(Authorized Signatory and Co. Chop)         Date:
Date:

Acknowledged and Counter-signed by          Acknowledged and Counter-signed by

/s/ LEE SHU KWAN                            /s/ TAM MAN CHI
------------------------------------        ------------------------------------
Mr. Lee Shu Kwan                            Mr. Tam Man Chi

Date:                                       Date:

Encl. [Security Documents]

                                                                              10

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