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Technical Data Sheet

CISCO2921/K9 — Cisco 2921 Series 3 Port Gigabit Ethernet Router

✓ Government record, cited
CISCO · NETWORK · ROUTER
PRODUCT OVERVIEW
CISCO 2921 SERIES 3 PORT GIGABIT ETHERNET ROUTER

CISCO2921/K9: Cisco 2921 Series 3 Port Gigabit Ethernet Router.

CISCO 2921 SERIES 3 PORT GIGABIT ETHERNET ROUTER. Key specifications include Memory: Up to 4GB DRAM, 512MB flash, Processor: Dual-core 1.2GHz, Fixed Ports: 3x 10/100/1000 Ethernet, Form Factor: 1RU, Expansion Slots: 4 EHWIC, 2 SM. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-581-2367, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
NETWORK→ ROUTER→ CISCO2921/K9
NSN: 7025-01-581-2367
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 0GX96 — CISCO SYSTEMS INC (USA)
SPECIFICATIONS
ProcessorDual-core 1.2GHz
Fixed Ports3x 10/100/1000 Ethernet
Form Factor1RU
Expansion Slots4 EHWIC, 2 SM
NSN7025-01-581-2367
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 3-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN CISCO2921/K9 MFR CISCO Cisco 2921 Series 3 Port Gigabit Etherne
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CISCO INTEGRATED SERVICE ROUTER, GEN 2; SMALL OFC SECURE VOICE, VIDEO, DATA, APPLICATION SERVICES; 2 RU; 3 GE (2 SFP) INTEGRATED WAN PORTS; 4 ENHANCED HI SPEED WAN INTERFACE CARD SLOTS; 1 INTERNAL SERVICE MODULE SLOT; 1 SERVICE MODULE SLOT; 3 PVDM SLOTS; 2 USB PORTS; 256MB MAX FLASH; 512MB SDRAM; 50 MODULAR LAN SWITCHPORTS MB
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCISCO INTEGRATED SERVICE ROUTER, GEN 2; SMALL OFC SECURE VOICE, VIDEO, DATA, APPLICATION SERVICES; 2 RU; 3 GE (2 SFP) INTEGRATED WAN PORTS; 4 ENHANCED HI SPEED WAN INTERFACE CARD SLOTS; 1 INTERNAL SERVICE MODULE SLOT; 1 SERVICE MODULE SLOT; 3 PVDM SLOTS; 2 USB PORTS; 256MB MAX FLASH; 512MB SDRAM; 50 MODULAR LAN SWITCHPORTS MB
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is CISCO2921/K9?
CISCO2921/K9 is a Cisco 2921 Series 3 Port Gigabit Ethernet Router manufactured by CISCO. It is classified as a NETWORK (ROUTER).
What is the NSN for CISCO2921/K9?
CISCO2921/K9 is cataloged in the U.S. Government catalog under NSN 7025-01-581-2367. 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.