Document:

Exhibit 4.1

 

NUMBER UNITS

U-

 

SEE REVERSE FOR CERTAIN DEFINITIONS

 

CUSIP [●]

 

KL
Acquisition Corp

 

UNITS CONSISTING OF ONE SHARE OF CLASS A
COMMON STOCK AND ONE-THIRD OF ONE REDEEMABLE WARRANT, EACH WHOLE WARRANT ENTITLING THE HOLDER TO PURCHASE ONE SHARE OF CLASS A
COMMON STOCK

 

THIS CERTIFIES THAT                    is
the owner of                    Units.

 

Each Unit (“Unit”)
consists of one share of Class A common stock, par value $0.0001 per share (“Common Stock”), of
KL Acquisition Corp, a Delaware corporation (the “Company”), and one-third of one redeemable warrant
(the “Warrant”). Each whole Warrant entitles the holder to purchase one share of Common Stock for $11.50
per share (subject to adjustment). Only whole Warrants are exercisable. Each whole Warrant will become exercisable on the later
of (i) thirty (30) days after the Company’s completion of a merger, capital stock exchange, asset acquisition, stock
purchase, reorganization or other similar business combination with one or more businesses (each, a “Business Combination”),
and (ii) twelve (12) months from the closing of the Company’s initial public offering, and will expire unless exercised
before 5:00 p.m., New York City Time, on the date that is five (5) years after the date on which the Company completes its
initial Business Combination, or earlier upon redemption or liquidation. The Common Stock and Warrants comprising the Units represented
by this certificate are not transferable separately prior to              ,
2021, unless Goldman Sachs & Co. LLC elects to allow separate trading earlier, subject to the Company’s filing of
a Current Report on Form 8-K with the Securities and Exchange Commission containing an audited balance sheet reflecting the
Company’s receipt of the gross proceeds of the Company’s initial public offering and issuing a press release announcing
when separate trading will begin. No fractional Warrants will be issued upon separation of the Units. The terms of the Warrants
are governed by a Warrant Agreement, dated as of               ,
2021, between the Company and Continental Stock Transfer & Trust Company, as Warrant Agent, and are subject to the terms
and provisions contained therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof.
Copies of the Warrant Agreement are on file at the office of the Warrant Agent at 1 State Street, 30th Floor, New York, New York
10004, and are available to any Warrant holder on written request and without cost.

 

This certificate is not valid unless countersigned
by the Transfer Agent and registered by the Registrar of the Company.

 

This certificate shall be governed by and
construed in accordance with the internal laws of the State of New York.

 

Witness the facsimile signature of a duly
authorized signatory of the Company.

 

 

	Authorized Signatory	 	Transfer Agent

 

     

     

    

 

KL ACQUISITION CORP

 

The Company will furnish without charge
to each unitholder who so requests, a statement of the powers, designations, preferences and relative, participating, optional
or other special rights of each class of equity or series thereof of the Company and the qualifications, limitations, or restrictions
of such preferences and/or rights.

 

The following abbreviations, when used in
the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable
laws or regulations:

 

	TEN COM	–	as tenants in common	 	UNIF GIFT MIN ACT	–	                               	Custodian	                           
	TEN ENT	–	as tenants by the

        entireties
	 	 	 	(Cust)	 	(Minor)
	 	 	 	 	 	 	 
	JT TEN	–	as joint tenants with

        right of survivorship

        

        
	 	 	 	
        under Uniform Gifts to Minors Act

         

        

	 	 	and not as tenants in

        common
	 	 	 	(State)

 

Additional abbreviations may also be used
though not in the above list.

 

For value received,                     
hereby sells, assigns and transfers unto                           

 

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF
ASSIGNEE

 

 

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING
ZIP CODE, OF ASSIGNEE)

 

 

 

                                      Units
represented by the within Certificate, and do hereby irrevocably constitute and appoint

 

                           Attorney
to transfer the said Units on the books of the within named Company with full power of substitution in the premises.

 

	Dated	 
	 	Notice: The signature to this assignment
                                         must correspond with the name as written upon the face of the certificate in every particular,
                                         without alteration or enlargement or any change whatever.
	 	 
	Signature(s) Guaranteed:	 
	 	 
	

THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR
INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE
MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 (OR ANY SUCCESSOR RULE).

	 

 

    2 

     

    

 

As more fully described in, and subject to the terms
and conditions described in, the Company’s final prospectus for its initial public offering dated                    ,
2021, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain funds held in the trust
account established in connection with the Company’s initial public offering only in the event that (i) the Company
redeems the shares of Common Stock sold in the Company’s initial public offering and liquidates because it does not consummate
an initial business combination by the date (the “Last Date”) set forth in the Company’s Amended and
Restated Certificate of Incorporation, as the same may be amended from time to time (the “Charter”), (ii) the
Company redeems the shares of Common Stock sold in its initial public offering properly submitted in connection with a stockholder
vote to amend the Charter to modify the substance or timing of the Company’s obligation to redeem 100% of the Common Stock
if it does not consummate an initial business combination by the Last Date or with respect to any other material provisions relating
to stockholders’ rights or pre-initial business combination activity, or (iii) if the holder(s) seek(s) to
redeem for cash his, her or its respective shares of Common Stock in connection with a tender offer (or proxy solicitation, solely
in the event the Company seeks stockholder approval of the proposed initial business combination) setting forth the details of
a proposed initial business combination. In no other circumstances shall the holder(s) have any right or interest of any
kind in or to the trust account.

 

    3Exhibit 4.2

 

	
        NUMBER

        C-
	
        SHARES

        CUSIP [●]

	 	 
	SEE REVERSE FOR CERTAIN DEFINITIONS	 

 

KL ACQUISITION CORP 

CLASS A COMMON STOCK

 

THIS
CERTIFIES THAT                         is
the owner of                     
fully paid and non-assessable shares of Class A common stock, par value $0.0001 per share (the “Common Stock”),
of KL Acquisition Corp, a Delaware corporation (the “Company”), transferable on the books of the Company
in person or by duly authorized attorney upon surrender of this certificate properly endorsed.

 

This
certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar of the Company.

 

Witness the facsimile
signature of a duly authorized signatory of the Company.

 

 

	Authorized Signatory	 	Transfer Agent

 

    

     

    

 

KL ACQUISITION CORP

 

The Company will furnish without charge
to each stockholder who so requests, a statement of the powers, designations, preferences and relative, participating, optional
or other special rights of each class of equity or series thereof of the Company and the qualifications, limitations, or restrictions
of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall be held subject to
all the provisions of the Company’s Amended and Restated Certificate of Incorporation and all amendments thereto and resolutions
of the Board of Directors providing for the issue of securities (copies of which may be obtained from the secretary of the Company),
to all of which the holder of this certificate by acceptance hereof assents.

 

The following abbreviations, when used in
the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable
laws or regulations:

 

	TEN COM	–	as tenants in common	 	UNIF GIFT MIN ACT	–	                               	Custodian	                           
	TEN ENT	–	as tenants by the

        entireties
	 	 	 	(Cust)	 	(Minor)
	 	 	 	 	 	 	 
	JT TEN	–	as joint tenants with

        right of survivorship

        

        
	 	 	 	
        under Uniform Gifts to Minors Act

         

        

	 	 	and not as tenants in

        common
	 	 	 	(State)

  

Additional abbreviations may also be used
though not in the above list.

 

For value received,                     
hereby sells, assigns and transfers unto                        

 

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF
ASSIGNEE(S)

 

 

(PLEASE PRINT OR TYPEWRITE NAME(S) AND
ADDRESS(ES), INCLUDING ZIP CODE(S), OF ASSIGNEE(S))

 

 

  

                                    shares
of Common Stock represented by the within Certificate, and hereby irrevocably constitutes and appoints

 

                          Attorney
to transfer the said shares of Common Stock on the books of the within named Company with full power of substitution in the premises.

 

	Dated :	 
	 	Notice:The signature(s) to this assignment
               must correspond with the name as written upon the face of the certificate in every particular, without alteration
               or enlargement or any change whatever.
	 	 
	Signature(s) Guaranteed:	 
	 	 
	

THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR
INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE
MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 OR ANY SUCCESSOR RULE).

	 

 

    

     

    

 

As more fully described in, and subject to the terms and conditions
described in, the Company’s final prospectus for its initial public offering dated                                 , 2021, the holder(s) of this certificate
shall be entitled to receive a pro-rata portion of certain funds held in the trust account established in connection with the Company’s
initial public offering only in the event that (i) the Company redeems the shares of Common Stock sold in the Company’s
initial public offering and liquidates because it does not consummate an initial business combination by the date (the “Last
Date”) set forth in the Company’s Amended and Restated Certificate of Incorporation, as the same may be amended
from time to time (the “Charter”), (ii) the Company redeems the shares of Common Stock sold in its
initial public offering properly submitted in connection with a stockholder vote to amend the Charter to modify the substance or
timing of the Company’s obligation to redeem 100% of the Common Stock if it does not consummate an initial business combination
by the Last Date or with respect to any other material provisions relating to stockholders’ rights or pre-initial business
combination activity, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective shares of
Common Stock in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks stockholder approval
of the proposed initial business combination) setting forth the details of a proposed initial business combination. In no other
circumstances shall the holder(s) have any right or interest of any kind in or to the trust account.

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