Exhibit 4.3


 





LANTRONIX, INC.


 


AMENDED AND RESTATED
2010 STOCK INCENTIVE PLAN


 


STOCK OPTION AGREEMENT


 


 


 


Unless otherwise defined herein, the terms
defined in the Lantronix, Inc. Amended and Restated 2010 Stock Incentive Plan (the “Plan”) shall have the same defined
meanings in this Stock Option Agreement (the “Option Agreement”).


 


I.NOTICE OF GRANT


 


[Optionee’s Name and Address]


 


You have been granted an option to purchase
Common Stock of the Company, subject to the terms and conditions of the Plan and this Option Agreement, as follows:


 


	Grant Number	__________
	Grant Date	_____________
	Vesting Commencement Date	_____________
	Exercise Price per Share	$______
	Total Number of Shares Granted	__________
	Total Exercise Price	$__________
	Type of Option:	[Incentive Stock Option/Nonstatutory Stock Option]
	Term/Expiration Date:	___ Years From the Grant Date


 


Vesting Schedule:


 


Subject to accelerated vesting as set forth
in duly authorized written agreements by and between Optionee and the Company, this Option may be exercised, in whole or in part,
in accordance with the following schedule:


 


Subject to the Optionee remaining a Service
Provider, the shares subject to the Option (the “Shares”) shall vest such that: [descrption of vesting schedule]


 






    	1



    	 



    

 


II.AGREEMENT


 


1.
Grant of Option. 


 


The Company hereby grants to the Optionee
(the “Optionee”) named in the Notice of Grant section of this Agreement (the “Notice of Grant”), an
option (the “Option”) to purchase the number of Shares set forth in the Notice of Grant, at the exercise price per
share set forth in the Notice of Grant (the “Exercise Price”), subject to the terms and conditions of the Plan (which
is incorporated herein by reference) and this Option Agreement. In the event of a conflict between the terms and conditions of
the Plan and the terms and conditions of this Option Agreement, the terms and conditions of the Plan shall prevail.


 


		2.	Exercise of Option.



 


(a) Right to Exercise. This
Option is exercisable during its term in accordance with the Vesting Schedule set out in the Notice of Grant and the applicable
provisions of the Plan and this Option Agreement, subject to Optionee’s remaining a Service Provider on each vesting date.


 


(b)Post-Termination Exercise Period.
If Optionee ceases to be a Service Provider, then this Option may be exercised, but only to the extent vested on the date of such
cessation as a Service Provider, until the earlier of (i) [_________]after the date upon which Optionee ceases to be a Service
Provider, or (ii) the original [_______]-year Option term.


 


(c) Method of Exercise. This
option may be exercised with respect to all or any part of any vested Shares by giving the Company or any stock option plan administrator
designated by the Company written or electronic notice of such exercise, in the form designated by the Company or the Company’s
designated third-party stock option plan administrator, specifying the number of shares as to which this option is exercised and
accompanied by payment of the aggregate Exercise Price as to all exercised shares.


 


This Option shall be deemed to be exercised
upon receipt by the Company or any third-party stock option plan administrator designated by the Company of such fully executed
exercise notice accompanied by such aggregate Exercise Price.


 


No Shares shall be
issued pursuant to the exercise of this Option unless such issuance and exercise complies with applicable laws. Assuming such compliance,
for income tax purposes the exercised shares shall be considered transferred to the Optionee on the date the Option is exercised
with respect to such exercised shares.


 


(d)Payment of Exercise Price.
Payment of the aggregate exercise price shall be by any of the following, or a combination thereof, at the election of the Optionee:


 


(i) cash; or


 


(ii) check; or


 




    	2



    	 



    

(iii) delivery of a properly executed
exercise notice together with such other documentation as the Administrator and a broker, if applicable, shall require to effect
an exercise of the Option and delivery to the Company of the sale proceeds required to pay the exercise price.


 


		3.	Non-Transferability of Option.



 


This Option may not be transferred in any
manner otherwise than by will or by the laws of descent or distribution and may be exercised during the lifetime of Optionee only
by the Optionee. The terms of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs, successors
and assigns of the Optionee.


 


		4.	Term of Option.



 


This Option may be exercised only within
the term set out in the Notice of Grant, and may be exercised during such term only in accordance with the Plan and the terms of
this Option Agreement.


 


		5.	Tax Consequences. 



 


Some of the federal tax consequences relating
to this Option, as of the date of this Option, are set forth below. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND
REGULATIONS ARE SUBJECT TO CHANGE. THE OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE
SHARES.


 


(a) Exercising the Option. The Optionee may incur
regular federal income tax liability upon exercise of a Nonstatutory Stock Option. The Optionee will be treated as having received
compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of the fair market value of the exercised
shares on the date of exercise over their aggregate Exercise Price. If the Optionee is an Employee or a former Employee, the Company
will be required to withhold from his or her compensation or collect from Optionee and pay to the applicable taxing authorities
an amount in cash equal to a percentage of this compensation income at the time of exercise, and may refuse to honor the exercise
and refuse to deliver Shares if such withholding amounts are not delivered at the time of exercise.


 


(b)Disposition of Shares.
If the Optionee holds NSO Shares for at least one year, any gain realized on disposition of the Shares will be treated as long-term
capital gain for federal income tax purposes.


 


		6.	Entire Agreement; Governing Law.



 


The Plan is incorporated herein by reference.
The Plan and this Option Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and
supersede in their entirety all prior undertakings and agreements of the Company and Optionee with respect to the subject matter
hereof, and may not be modified adversely to the Optionee’s interest except by means of a writing signed by the Company and
Optionee. This agreement is governed by the internal substantive laws, but not the choice of law rules, of California.


 




    	3



    	 



    

By your signature and the signature of the
Company’s representative below, you and the Company agree that this Option is granted under and governed by the terms and
conditions of the Plan and this Option Agreement. Optionee has reviewed the Plan and this Option Agreement in their entirety, has
had an opportunity to obtain the advice of counsel prior to executing this Agreement and fully understands all provisions of the
Plan and this Option Agreement. Optionee hereby agrees to accept as binding, conclusive and final all decisions or interpretations
of the Administrator upon any questions relating to the Plan and Option Agreement. Optionee further agrees to notify the Company
upon any change in the residence address indicated below.


 


 


 


	OPTIONEE	 	LANTRONIX, INC.
	 	 	 
	 	 	 
	Signature:	 	 	Signature:	 
	Print Name:	 	 	Print Name:	 
	Date:	 	 	Title:	 
	 	 	 	Date:	 


 


 




 


 


 


 


 


 






    	4