- Amended Statement of Ownership (SC 13G/A)

Page 1 of 11 Pages

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 13G

Under the Securities exchange Act of 1934

(AMENDMENT NO.4)*

BLACK BOX CORP DEL
(NAME OF ISSUER)

COM
(TITLE OF CLASS OF SECURITIES)

091826107
(CUSIP NUMBER)

December 31, 2009
(Date of event which requires filing of this Statement)

NOTE: A MAJORITY OF THE SHARES REPORTED IN THIS SCHEDULE 13G ARE HELD BY UNAFFILIATED THIRD-PARTY CLIENT ACCOUNTS MANAGED BY ALLIANCEBERNSTEIN L.P., AS INVESTMENT ADVISER. (ALLIANCEBERNSTEIN L.P. IS A MAJORITY -OWNED SUBSIDIARY OF AXA FINANCIAL, INC.)

this Schedule is filed:

X Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person?s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be 'filed' for the purpose of Section 18 of the Securities Exchange Act of 1934 ('Act') or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

(CONTINUED ON FOLLOWING PAGE(S))

<PAGE

 CUSIP NO. 091826107 13G Page 2 of 11 Pages


 1. NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 AXA Assurances I.A.R.D. Mutuelle

 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP * (A) [X]
 (B) [ ]

 3. SEC USE ONLY


 4. CITIZENSHIP OR PLACE OF ORGANIZATION
 France

 NUMBER OF 5. SOLE VOTING POWER 417,887
 SHARES
 BENEFICIALLY 6. SHARED VOTING 0
 December 31, POWER
 BY EACH 691,430
 REPORTING 7. SOLE DISPOSITIVE
 PERSON WITH: POWER 0

 9. AGGREGATE AMOUNT BENEFICIALLY 691,430
OWNED BY EACH
 (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
EXCLUDES CERTAIN
 SHARES * | |

 11. PERCENT OF CLASS REPRESENTED BY 3.9%

 12. TYPE OF REPORTING PERSON *
 IC
 * SEE INSTRUCTIONS BEFORE FILLING OUT!

<PAGE

CUSIP NO. 091826107 13G Page 3 of 11 Pages

 1. NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 AXA Assurances Vie Mutuelle

 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP * (A) [X]
 (B) [ ]

 3. SEC USE ONLY

 4. CITIZENSHIP OR PLACE OF ORGANIZATION
 France
 NUMBER OF 5. SOLE VOTING POWER 417,887
 SHARES
 BENEFICIALLY 6. SHARED VOTING 0
 December 31, POWER
 BY EACH 691,430
 REPORTING 7. SOLE DISPOSITIVE
 PERSON WITH: POWER 0


 9. AGGREGATE AMOUNT BENEFICIALLY 691,430
OWNED BY EACH
 (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
EXCLUDES CERTAIN
 SHARES * | |

 11. PERCENT OF CLASS REPRESENTED BY 3.9%

 12. TYPE OF REPORTING PERSON *
 IC
 * SEE INSTRUCTIONS BEFORE FILLING OUT!



 <PAGE

 CUSIP NO. 091826107 13G Page 4 of 11

 1. NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 AXA

 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A
 GROUP * (A) [ ]
 (B) [ ]

 3. SEC USE ONLY


 4. CITIZENSHIP OR PLACE OF ORGANIZATION
 France
 NUMBER OF 5. SOLE VOTING POWER 417,887
 SHARES
 BENEFICIALLY 6. SHARED VOTING 0
 OWNED AS OF POWER
 December 31, 691,430
 REPORTING 7. SOLE DISPOSITIVE
 PERSON WITH: POWER 0


 9. AGGREGATE AMOUNT BENEFICIALLY 691,430
 OWNED BY EACH
 (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
 EXCLUDES CERTAIN
 SHARES * | |
 11. PERCENT OF CLASS REPRESENTED BY 3.9%

 12. TYPE OF REPORTING PERSON *
 IC

 * SEE INSTRUCTIONS BEFORE FILLING OUT!

<PAGE

CUSIP NO. 091826107 13G Page 5 of 11 Pages

 1. NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 AXA Financial, Inc. 13-3623351

 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP * (A) [ ]
 (B) [ ]

 3. SEC USE ONLY


 4. CITIZENSHIP OR PLACE OF ORGANIZATION
 State of Delaware
 NUMBER OF 5. SOLE VOTING POWER 45,827
 SHARES
 BENEFICIALLY 6. SHARED VOTING 0
 December 31, POWER
 BY EACH 46,167
 REPORTING 7. SOLE DISPOSITIVE
 PERSON WITH: POWER 0


 9. AGGREGATE AMOUNT BENEFICIALLY 46,167
OWNED BY EACH
 (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
EXCLUDES CERTAIN
 SHARES * | |

 11. PERCENT OF CLASS REPRESENTED BY 0.3%

 12. TYPE OF REPORTING PERSON *
 HC

 * SEE INSTRUCTIONS BEFORE FILLING OUT!

<PAGE

 13G Page 6 of 11 Pages

Item 1(a) Name of
 BLACK BOX CORP DEL

Item 1(b) Address of Issuer's Principal Executive Offices:
 1000 Park Drive
 Lawrence, PA 15055


Item 2(a) and (b)
 Name of Person Filing and Address of Principal Business Office:

 AXA Assurances I.A.R.D Mutuelle, and
 AXA Assurances Vie Mutuelle,
 26, rue Drouot
 75009 Paris, France

 as a group (collectively, the 'Mutuelles AXA').

 AXA
 25, avenue Matignon
 75008 Paris, France

 AXA Financial, Inc.
 1290 Avenue of the Americas
 New York, New York 10104

 (Please contact Dean Dubovy at (201) 743-5068 with any questions.)









<PAGE

 13G Page 7 of 11 Pages
Item 2(c) Citizenship:
 Mutuelles AXA and AXA - France
 AXA Financial, Inc. - Delaware

Item 2(d) Title of Class of Securities:

 COM

Item 2(e) Cusip Number:
 091826107

Item 3. Type of Reporting Person:
 AXA Financial, Inc. as a parent holding company,
 in accordance with 240.13d-1(b)(ii)(G).

 The Mutuelles AXA, as a group, acting as a parent holding
company.

 AXA as a parent holding company.

<PAGE
 13G Page 8 of 11 Pages
<TABL

Item 4. Ownership as December 31,
 (a) Amount Beneficially Owned:
691,430 shares of common stock beneficially owned including:

No. of Shares Subtotals

The Mutuelles AXA, as a group 0

AXA 0

AXA Entity or Entities

 Common acquired solely for investment
 AXA Konzern AG (Germany) 4,500
 AXA Rosenberg Investment 640,763


AXA Financial, Inc. 0

Subsidiaries:

AllianceBernstein L.P.
acquired solely for investment
purposes on behalf of client
discretionary investment advisory
accounts:


 Common Stock 46,167

 46,167
 -------------
 Total 691,430
 =============

Each of the Mutuelles AXA, as a group, and AXA expressly declares that the filing of this Schedule 13G shall not be construed as an admission that it is, for purposes of Section 13(d) of the Exchange Act, the beneficial owner of any securities covered by this Schedule 13G.

Each of the above subsidiaries of AXA Financial, Inc. operates under independent management and makes independent decisions.

(b) Percent of Class: 3.9%

 (CONT.)

 (c) Deemed Voting Power and Disposition Power:
 (i) (ii) (iii) (iv)
 Deemed Deemed Deemed Deemed
 to have to have to have to have
 Sole Power Shared Power Sole Power Shared
Power
 to Vote to Vote to Dispose to Dispose
 or to or to or to or to
 Direct Direct Direct the Direct the
 the Vote the Vote Disposition Disposition
 ------------ ------------ ------------ ------------
The Mutuelles AXA,
AXA 0 0 0 0

AXA Entity or Entities:
 AXA Konzern AG 4,500 0 4,500 0
 (Germany)
 AXA Rosenberg 367,560 0 640,763 0
 Investment
 Management LLC


AXA Financial, Inc. 0 0 0 0

Subsidiaries:
------------
 AllianceBernstein 45,827 0 46,167 0

 ------------ ------------ ------------ ------------
 417,887 0 691,430 0
 ============ ============ ============ ============

Each of the above subsidiaries of AXA Financial, Inc. operates under
independent management and makes independent voting and
investment decisions.

Page 10 of 11 Pages

Item 5. Ownership of Five Percent or Less of a Class:
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of
more than five percent of the class of securities, (X)

Item 6. Ownership of More than Five Percent on behalf of Another Person. N/A

Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reporting on by the Parent Holding Company:

This Schedule 13G is being filed by AXA Financial, Inc.; AXA, which owns AXA Financial, Inc.; and the Mutuelles AXA, which as a group control AXA:

(X) in the Mutuelles AXAs' capacity, as a group, acting as a parent holding company with respect to the holdings of the following AXA entity or entities:

(X) in AXA's capacity as a parent holding company with respect to the holdings of the following AXA entity or entities:

AXA Konzern AG (Germany)

AXA Rosenberg Investment Management LLC

(X) in AXA Financial, Inc.'s capacity as a parent holding company
with respect to the holdings of the following subsidiaries:
(X) AllianceBernstein L.P.
(13-3434400), an investment adviser registered under
Section 203 of the Investment Advisers Act of 1940.

(X) AXA Equitable Life Insurance Company (13-5570651), an insurance company and an investment adviser registered under Section 203 of the Investment Advisers Act of 1940.

Page 11 of 11 Pages

Item 8. Identification and Classification of Members of the Group.
N/A

Item 9. Notice of Dissolution of Group: N/A

Item 10. Certification:

By signing below I certify that to the best of my knowledge and
belief, the securities referred to above were acquired in the ordinary
course of business and were not acquired for the purpose of and do not
have the effect of changing or influencing the control of the issuer
of such securities and were not acquired in connection with or as a
participant in any transaction having such purposes or effect.

Signature

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement

Date: ,February 12, 2010 AXA FINANCIAL, INC.*







 /s/ Alvin H. Fenichel

 Alvin H. Fenichel
 Senior Vice President
 and Controller

*Pursuant to the Joint Filing Agreement with respect to Schedule 13G attached hereto as Exhibit I, among AXA Financial, Inc., AXA Assurances I.A.R.D Mutuelle, AXA Assurances Vie Mutuelle, and AXA, this statement Schedule 13G is filed on behalf of each of them.

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