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805358-K21 — Memory Specs & Substitutes

HP · DIMM
WHAT YOU NEED TO KNOW
2Rx4 = Dual Rank ×4 chip width (standard server) RDIMM = Registered (servers) | LRDIMM = Load-Reduced (max density)
DDR3 ≠ DDR4 ≠ DDR5 — physically incompatible (notch position)
PRODUCT OVERVIEW

HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel - WS. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
805358-K21
SPECIFICATIONS
Part Number805358-K21
ManufacturerHP
Capacity64GB
Speed2400MHz
BROWSE HPE MACHINES
ProLiant DL360 Gen10 ProLiant DL380 Gen10 ProLiant BL460c Gen10 ProLiant DL380 Gen9 ProLiant DL360 Gen9 3PAR StoreServ 8450 ProLiant BL685c G7 3PAR StoreServ 8400 3PAR StoreServ 8440 3PAR StoreServ 8200 MSA 2052 SAN Storage ProLiant BL460c Gen9
All HPE machines and parts
COMPONENT DIAGRAM
ECC 64GB 2Rx4 PC4 2400MHz RDIMM HP NOTCH ~133.35 mm DDR4 RDIMM | 64GB | 2400MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 805358-K21 MFR HP 64GB 2400MHz
KEY FEATURES
•
64GB Capacity
•
2400MHz Speed
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
SUBSTITUTES & CROSS-REFERENCES 12
805358-B21CompatiblePARTNER
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
compatible
819413-001CompatiblePARTNER
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
compatible
805358-H21CompatiblePARTNER
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
compatible
805358-X21CompatiblePARTNER
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
compatible
809085-091CompatiblePARTNER
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
compatible
809085-091UCompatiblePARTNER
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 18
L09277-001SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
L09287-850SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
T9V42AASUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
805358-B21SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
805358-H21SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
805358-X21SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
809085-091SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
809085-091USUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
809085-09HSUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
809085-09SSUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
809085-391SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
809085-591SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
819413-001SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
852266-001SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
859939-091SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
859992-B21SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
867286-001SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
874270-001SUBSTITUTE
HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel v4 - G9
HPE
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FREQUENTLY ASKED QUESTIONS
What is 805358-K21?
805358-K21 is a HP 64Gb PC4-2400T-L Load Reduced QR x4 CAS-17 DIMM - Intel - WS manufactured by HP.
What parts can replace 805358-K21?
There are 12 known substitutes for 805358-K21: 805358-B21, 819413-001, 805358-H21 and 9 more. Substitute compatibility should be verified for your specific system.
Is 805358-K21 still available?
805358-K21 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.