PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 803028-B21

803028-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 Standard memory designed for HP Entry and value server presenting the best pricing in the market. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
803028-B21
SPECIFICATIONS
Part Number803028-B21
ManufacturerHPE
InterfaceDDR4
Capacity8GB
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC4 — RDIMM HPE NOTCH ~133.35 mm DDR4 RDIMM | 8GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 803028-B21 MFR HPE 8GB —
KEY FEATURES
•
DDR4 Interface
•
8GB Capacity
•
DDR4 Memory
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
804843-001Compatible
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel - G9 Standard
compatible
803656-081Compatible
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel - G9 Standard
compatible
752368-081Compatible
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel v3 - G9
compatible
752368-08SCompatible
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel v3 - G9
compatible
752368-281Compatible
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel v3 - G9
compatible
752368-581Compatible
HP 8GB PC4-2133P-R ECC Reg Sr X4 Cas-15 Dimm - Intel - WS
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
803656-081SUBSTITUTE
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel - G9 Standard
HPE
804843-001SUBSTITUTE
HP 8Gb PC4-2133P-R ECC REG SR x4 CAS-15 DIMM - Intel - G9 Standard
HPE
Ready to buy 803028-B21?
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 803028-B21?
803028-B21 is a HP 8GB (1x8GB) Single Rank x4 DDR4-2133 CAS-15-15-15 Registered Standard Memory Kit memory module 288-pin DIMM ECC manufactured by HPE.
What parts can replace 803028-B21?
There are 12 known substitutes for 803028-B21: 804843-001, 803656-081, 752368-081 and 9 more. Substitute compatibility should be verified for your specific system.
Is 803028-B21 still available?
803028-B21 is currently Unknown.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 803028-B21

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026