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A0R55A — HP 16GB DDR3 1066MHz memory module 1 x 16 GB

HPE · DIMM
PRODUCT OVERVIEW

A0R55A: HP 16GB DDR3 1066MHz memory module 1 x 16 GB.

The HP 16GB DDR3 1066MHz memory module 1 x 16 GB is a HPE memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

SPECIFICATIONS
Part NumberA0R55A
ManufacturerHPE
InterfaceDDR3
Capacity16GB
Speed1066MHz
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COMPONENT DIAGRAM
ECC 16GB 2Rx4 PC3 1066MHz RDIMM HPE NOTCH ~133.35 mm DDR3 RDIMM | 16GB | 1066MHz | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN A0R55A MFR HPE 16GB 1066MHz
KEY FEATURES
•
DDR3 Interface
•
16GB Capacity
•
1066MHz Speed
•
DDR3 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
SUBSTITUTES & CROSS-REFERENCES 6
500666-B21CompatiblePARTNER
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
compatible
501538-001CompatiblePARTNER
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
compatible
500207-071CompatiblePARTNER
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
compatible
500207-571CompatiblePARTNER
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel - WS
compatible
584686-001CompatiblePARTNER
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel - WS
compatible
NL674AACompatiblePARTNER
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM for Z800
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 6
NL674AASUBSTITUTE
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
HPE
500207-071SUBSTITUTE
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
HPE
500207-571SUBSTITUTE
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
HPE
500666-B21SUBSTITUTE
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
HPE
501538-001SUBSTITUTE
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
HPE
584686-001SUBSTITUTE
HP 16Gb PC3-8500R 1066Mhz ECC REG QR x4 CAS-7 DIMM - Intel
HPE
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FREQUENTLY ASKED QUESTIONS
What is A0R55A?
A0R55A is a HP 16GB DDR3 1066MHz memory module 1 x 16 GB manufactured by HPE.
What parts can replace A0R55A?
There are 6 known substitutes for A0R55A: 500666-B21, 501538-001, 500207-071 and 3 more. Substitute compatibility should be verified for your specific system.
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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.