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451438-B21 — HP CISCO CATALYST 1GBE 3120G 4 PORT BLADE SWITCH

✓ Government record, cited
HPE · NETWORK · 3.5_SATA_HDD
PRODUCT OVERVIEW

451438-B21: HP CISCO CATALYST 1GBE 3120G 4 PORT BLADE SWITCH.

The Cisco Catalyst Blade Switch 3120 series represent the next generation networking solution for blade server environments. With the Cisco Catalyst Blade Switch 3120 series switches, HP and Cisco introduce a technology unique to blade server enclosures that allows multiple switches to act as a single entity. This switch stacking technology takes the individual physical switches within a rack and treats them as one logical switch.

This innovation is the foundation of the switches' ability to simplify operations and management. Built on Cisco's proven hardware and IOS software, the Cisco Catalyst 3120 is engineered with unique technologies specifically designed to meet the rigors of the blade server infrastructure. Both switches deliver scalable, high-performance, highly resilient connectivity while supporting ongoing data center initiatives to reduce server infrastructure complexity, management and TCO.

This part is cataloged in the U.S. Government catalog under NSN 7025-01-575-0010, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
NETWORK→ 3.5_SATA_HDD→ 451438-B21
NSN: 7025-01-575-0010
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
UNIT DESIGNRACK MOUNTED
PART NAME ASSIGNED BY CONTROLLING AGENCYHP CISCO CATALYST 1GBE 3120G 4 PORT BLADE SWITCH G
NSN7025-01-575-0010
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COMPONENT DIAGRAM
RELEASE LATCH 1GB 1GbE 7.2K 451438-B21 HPE 1GbE INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 1GB | 1GbE 7.2K NL-SAS uses SAS protocol at 7.2K RPM | SAS backplane supports SATA, not reverse Tray generation matters | Gen8 LFF tray differs from Gen10 TITLE LFF 3.5" DRIVE PN 451438-B21 MFR HPE
KEY FEATURES
•
1GbE Interface
•
1GB Capacity
•
UNIT DESIGN: RACK MOUNTED
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMEMORY: 256MB MAIN, 64MB FLASH MB
PART NAME ASSIGNED BY CONTROLLING AGENCYHP CISCO CATALYST 1GBE 3120G 4 PORT BLADE SWITCH G
UNIT DESIGNRACK MOUNTED
OTHER ITEMS IN FSC 7025 — Information Technology Input/output and Storage Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
7025-00-001-2681 7025-00-001-5588 7025-00-001-6998 7025-00-001-6999 7025-00-001-7000 7025-00-001-7025 7025-00-001-7026 7025-00-001-7027
SUBSTITUTES & CROSS-REFERENCES 2
451356-001CompatiblePARTNER
HP BL-c Switch Cisco Catalyst 3120G 1GbE RJ-45 4-Port Uplinks/1GbE 16-Port Downlinks/64Gb Stacking 2-Port Module
compatible
WS-CBS3120G-SCompatiblePARTNER
HP BL-c Switch Cisco Catalyst 3120G 1GbE RJ-45 4-Port Uplinks/1GbE 16-Port Downlinks/64Gb Stacking 2-Port Module
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 2
WS-CBS3120G-SSUBSTITUTE
HP BL-c Switch Cisco Catalyst 3120G 1GbE RJ-45 4-Port Uplinks/1GbE 16-Port Downlinks/64Gb Stacking 2-Port Module
HPE
451356-001SUBSTITUTE
HP BL-c Switch Cisco Catalyst 3120G 1GbE RJ-45 4-Port Uplinks/1GbE 16-Port Downlinks/64Gb Stacking 2-Port Module
HPE
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FREQUENTLY ASKED QUESTIONS
What is 451438-B21?
451438-B21 is a HP CISCO CATALYST 1GBE 3120G 4 PORT BLADE SWITCH manufactured by HPE. It is classified as a NETWORK (3.5_SATA_HDD).
What parts can replace 451438-B21?
There are 2 known substitutes for 451438-B21: 451356-001, WS-CBS3120G-S. Substitute compatibility should be verified for your specific system.
What is the NSN for 451438-B21?
451438-B21 is cataloged in the U.S. Government catalog under NSN 7025-01-575-0010. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.