PartsTable
Technical Data Sheet
PartsTable / MRO / 311583-B21

311583-B21 — Network Technical Data

✓ Verified by PartsTable
HPE · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

<b>Maximize Performance. Minimize Power. Automatically.</b><br>As data centers reach the upper limits of their power and cooling capacity, efficiency has become the focus of extending the life of existing data centers and designing new ones.

As part of these efforts, IT needs to refresh existing infrastructure with standard enterprise servers that deliver more performance and scalability, more efficiently. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-544-4260, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 311583-B21
NSN: 7025-01-544-4260
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
special_featuresINTEL XEON PROCESSOR KIT; 800MHZ BUS; 3.4GHZ CLOCK; PROCESSOR UPGRADE; 1024KB CACHE; SPEEDSTEP TECHNOLOGY, INTEL EXTENDED MEMORY 64; DEMAND BASED SWITCHING KB
NSN7025-01-544-4260
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN 311583-B21 MFR HPE HP Intel Xeon 3.4 GHz processor 1 MB L2
KEY FEATURES
•
1MB Capacity
TYPICAL APPLICATIONS
  • Enterprise virtualization host density upgrades
  • Database server performance scaling
  • AI/ML inference workloads
  • High-performance computing (HPC) clusters
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESINTEL XEON PROCESSOR KIT; 800MHZ BUS; 3.4GHZ CLOCK; PROCESSOR UPGRADE; 1024KB CACHE; SPEEDSTEP TECHNOLOGY, INTEL EXTENDED MEMORY 64; DEMAND BASED SWITCHING KB
SPECIAL FEATURESINTEL XEON PROCESSOR KIT; 800MHZ BUS; 3.4GHZ CLOCK; PROCESSOR UPGRADE; 1024KB CACHE; SPEEDSTEP TECHNOLOGY, INTEL EXTENDED MEMORY 64; DEMAND BASED SWITCHING KB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
HP XEON 3.4GHZInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
RELATED PARTS 6
453151-B21
HPE BladeSystem c-Class Virtual Connect 1G SFP SX Transceiver
P49046-B21
HPE 800GB SAS 12G Mixed Use SFF SC Multi Vendor SSD
P47807-B21
HPE 480GB SATA 6G Read Intensive LFF SCC Multi Vendor SSD
458926-B21
HP 250GB 7.2K Hot Plug SATA Midline Hard Drive Disk (HDD)
C3751-60201
PS/2 two-button serial mouse (Quartz Gray) - Has attached 6ft cable with 6-pin mini-DIN connector
C3757-60401
PS/2 keyboard assembly (Quartz Gray, 101 key layout) - Has attached 2m (6.56ft) cable with 6-pin mini-DIN connector (Option ABA, English)
Ready to buy 311583-B21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 311583-B21?
311583-B21 is a HP Intel Xeon 3.4 GHz processor 1 MB L2 manufactured by HPE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 311583-B21?
There is 1 known substitute for 311583-B21: HP XEON 3.4GHZ. Substitute compatibility should be verified for your specific system.
What is the NSN for 311583-B21?
311583-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-544-4260. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 311583-B21

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026