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843315-B21 — Memory Specs & Substitutes

✓ Verified by PartsTable
HPE · 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 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
843315-B21
SPECIFICATIONS
Part Number843315-B21
ManufacturerHPE
Capacity32GB
Speed2400MHz
COMPONENT DIAGRAM
ECC 32GB 2Rx4 PC4 2400MHz RDIMM HPE NOTCH ~133.35 mm DDR4 RDIMM | 32GB | 2400MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 843315-B21 MFR HPE 32GB 2400MHz
KEY FEATURES
•
32GB Capacity
•
2400MHz Speed
•
Generation 9 Platform
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
819412-001Compatible
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9
compatible
805351-H21Compatible
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9
compatible
805351-K21Compatible
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9
compatible
805351-X21Compatible
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9
compatible
809083-091Compatible
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9
compatible
809083-091BCompatible
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 20
P00724-001SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
P35845-B21SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
P35853-001SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
T9V41AASUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
T9V41ATSUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
805351-B21SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
805351-H21SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
805351-K21SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
805351-X21SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-091SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-091BSUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-09SSUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-09XSUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-591SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-EF1SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
809083-T91SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
819412-001SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
819412-001BSUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
829806-091SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
844950-001SUBSTITUTE
HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - Apollo
HPE
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FREQUENTLY ASKED QUESTIONS
What is 843315-B21?
843315-B21 is a HP 32Gb PC4-2400T-R ECC REG DR x4 CAS-17 DIMM - Intel v4 - G9 manufactured by HPE.
What parts can replace 843315-B21?
There are 12 known substitutes for 843315-B21: 819412-001, 805351-H21, 805351-K21 and 9 more. Substitute compatibility should be verified for your specific system.
Is 843315-B21 still available?
843315-B21 is currently Unknown.
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PartsTable Design LLC · partstable.com
Last verified: September 2026