PartsTable
Intelligence Platform
Buy on eBay
PartsTable / MEMORY / 657891-001
657891-001 ✓ 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 300GB 15K DISK FC-4GB 3.5IN 520

HP 300GB 15K DISK FC-4GB 3.5IN 520. 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→ 657891-001
SPECIFICATIONS
Part Number657891-001
ManufacturerHP
Capacity300GB
Speed15K RPM
COMPONENT DIAGRAM
ECC 300GB 2Rx4 PC4 15K RPM RDIMM HP NOTCH ~133.35 mm DDR4 RDIMM | 300GB | 15K RPM | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 657891-001 MFR HP 300GB 15K RPM
KEY FEATURES
•
300GB Capacity
•
15K RPM Speed
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 3
657888-001Compatible
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
compatible
SEGLE0300GBFC15KCompatible
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
compatible
HVIPC0300GBFC15KCompatible
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 8
HVIPC0300GBFC15KSUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
QR621ASUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
QR621BSUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
QR621CSUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
QR626ASUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
QR626CSUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
SEGLE0300GBFC15KSUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
657888-001SUBSTITUTE
HP 300Gb FC 4Gb 15K 520 Format LFF HDD for 3PAR StoreServ 10000
HPE
Ready to buy 657891-001?
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 657891-001?
657891-001 is a HP 300GB 15k Disk FC-4GB 3.5in 520 manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 657891-001?
There are 3 known substitutes for 657891-001: 657888-001, SEGLE0300GBFC15K, HVIPC0300GBFC15K. Substitute compatibility should be verified for your specific system.
Is 657891-001 still available?
657891-001 is currently Unknown.
Community Feedback
Comments (0)
Loading comments...
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Need a quote for 657891-001?

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026