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663656-001 ✓ Verified by PartsTable
HP · MEMORY · RDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW
HP 6125G ETHERNET BLADE SWITCH SWITCH

HP 6125G ETHERNET BLADE SWITCH SWITCH. Key specifications include Form Factor: Blade. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY→ RDIMM→ 663656-001
SPECIFICATIONS
Form FactorBlade
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 663656-001 MFR HP HP 6125G Ethernet Blade Switch Switch
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
658247-B21Compatible
HP BL-c Switch 6125G 10GbE IRF or 1GbE SFP 2-Slot Uplinks/1GbE SFP 2-Slot Uplinks/1GbE RJ-45 4-Port Uplinks/1GbE 16-Port Downlinks Module
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 1
658247-B21SUBSTITUTE
HP BL-c Switch 6125G 10GbE IRF or 1GbE SFP 2-Slot Uplinks/1GbE SFP 2-Slot Uplinks/1GbE RJ-45 4-Port Uplinks/1GbE 16-Port Downlinks Module
HPE
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FREQUENTLY ASKED QUESTIONS
What is 663656-001?
663656-001 is a HP 6125G Ethernet Blade Switch Switch manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 663656-001?
There is 1 known substitute for 663656-001: 658247-B21. Substitute compatibility should be verified for your specific system.
Is 663656-001 still available?
663656-001 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026