FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

BRONSON STEVEN N 		2. Issuer Name and Ticker or Trading Symbol

QUALSTAR CORP [ QBAK ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      __ X __ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
COB, CEO, President
(Last)          (First)          (Middle)

C/O QUALSTAR CORPORATION, 130 WEST COCHRAN STREET, UNIT C 		3. Date of Earliest Transaction (MM/DD/YYYY)

5/21/2019
(Street)

WESTLAKE VILLAGE, CA 91361
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   (1) 5/21/2019     P    99   A $5.75   585281   (2) I   By BKF Asset Holdings, Inc.  
Common Stock   (1) 5/23/2019     P    1310   A $5.7232   586591   (2) I   By BKF Asset Holdings, Inc.  
Common Stock   (1)                14617   D    
Common Stock   (1)                10000   I   By Mr. Bronson's spouse.  
Common Stock   (1)                586591   (3) I   By BKF Capital Group, Inc.  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  This Form 4 is filed jointly by BKF Capital Group, Inc. ("BKF Capital"), BKF Asset Holdings, Inc. ("BKF Holdings") and Steven N. Bronson (collectively, the "Reporting Persons"). Each of the Reporting Persons disclaims beneficial ownership of the shares of common stock reported herein except to the extent of his or its pecuniary interest therein.
(2)  Represents shares of common stock owned directly by BKF Holdings. BKF Holdings is wholly owned by BKF Capital. Steven N. Bronson, as the Chairman, CEO and majority shareholder of BKF Capital and the CEO of BKF Holdings, may be deemed to be the beneficial owner of the shares of Qualstar Corporation held by BKF Holdings.
(3)  Represents shares of common stock owned indirectly by BKF Capital through BFK Holdings. Steven N. Bronson, as the Chairman, CEO and majority shareholder of BKF Capital, may be deemed to be the beneficial owner of the shares of Qualstar Corporation indirectly held by BKF Capital.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
BRONSON STEVEN N
C/O QUALSTAR CORPORATION
130 WEST COCHRAN STREET, UNIT C
WESTLAKE VILLAGE, CA 91361 		X X COB, CEO, President
BKF CAPITAL GROUP INC
C/O QUALSTAR CORPORATION
130 WEST COCHRAN STREET, UNIT C
WESTLAKE VILLAGE, CA 91361
X

BKF Asset Holdings, Inc.
C/O QUALSTAR CORPORATION
130 WEST COCHRAN STREET, UNIT C
WESTLAKE VILLAGE, CA 91361
X


Signatures
/s/Steven N. Bronson 5/23/2019
** Signature of Reporting Person Date

/s/Steven N. Bronson, Chief Executive Officer of BKF Capital Group, Inc. 5/23/2019
** Signature of Reporting Person Date

/s/Steven N. Bronson, Chief Executive Officer of BKF Asset Holdings, Inc. 5/23/2019
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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