HPE 32GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x4 Memory Module – 850881-001

HPE 32GB DDR4-2666 ECC Registered DIMM — 850881-001

The HPE 850881-001 is a 32GB DDR4-2666 (PC4-21300) ECC Registered DIMM spare part in a dual-rank 2Rx4 configuration for HPE ProLiant Gen10 servers. As the -001 spare designation, it is the field service replacement version of the 815100-B21 option kit, sharing identical 1.2V, CL19, 288-pin RDIMM specifications for seamless swap-in serviceability.

Key Features

• 32GB DDR4-2666 RDIMM spare — validated field replacement for Gen10 ProLiant service workflows
• 2666MHz (PC4-21300) ECC-protected bandwidth for Xeon Scalable Gen10 platforms
• Dual-rank 2Rx4 RDIMM architecture for signal integrity in multi-DIMM configurations
• 1.2V energy-efficient operation — identical electrical profile to 815100-B21 option kit

Product Specifications

• Part Number: 850881-001
• Manufacturer: HPE
• Capacity: 32GB
• Type: DDR4 ECC Registered (RDIMM)
• Speed: 2666MHz (PC4-21300)
• CAS Latency: CL19
• Voltage: 1.2V
• Ranks x Width: 2Rx4
• Pins: 288-pin

Memory Specifications

• Memory Standard: JEDEC DDR4-2666
• Error Correction: ECC (Error Correcting Code)
• Buffer Type: Registered (RDIMM)
• DRAM Generation: DDR4

Performance Specifications

• Peak Bandwidth: ~42.7 GB/s (PC4-21300)
• ECC Type: Single-bit error correction, multi-bit error detection
• RAS Features: Advanced ECC, rank sparing, memory mirroring (platform dependent)

Use Cases

• HPE ProLiant Gen10 spare parts inventory for 32GB DDR4-2666 RDIMM field replacement
• Service depot and data center maintenance for Gen10 memory module swaps
• Memory channel rebuild after DIMM failure in production ProLiant Gen10 systems
• Cost-effective spare procurement for HPE ProLiant Gen10 enterprise deployments

Compatibility

• HPE ProLiant DL380 Gen10, DL360 Gen10, DL180 Gen10
• HPE ProLiant ML350 Gen10, BL460c Gen10
• Intel Xeon Scalable 1st/2nd Generation (Skylake-SP / Cascade Lake-SP) supporting DDR4-2666

Frequently Asked Questions

Is 850881-001 interchangeable with 815100-B21 and 840758-091?

Yes — all three are HPE 32GB DDR4-2666 2Rx4 ECC RDIMM modules with identical specifications. 850881-001 is the spare part, 815100-B21 is the option kit, and 840758-091 is the factory/OEM variant — fully interchangeable in supported Gen10 configurations.

How do I identify the spare part number on an installed DIMM?

The spare part number is printed on the DIMM label. It can also be retrieved remotely via HPE iLO memory inventory or HPE Smart Storage Administrator.

Can 850881-001 be used in HPE ProLiant Gen9 servers?

DDR4-2666 is natively supported on Gen10 platforms. In Gen9 servers, this module may operate at DDR4-2400 or lower — verify against HPE Gen9 QuickSpecs before installation.

The HPE 850881-001 32GB DDR4-2666 RDIMM spare delivers reliable field-replacement memory for HPE ProLiant Gen10 deployments. Get it in stock today at a competitive price.