HPE 647899-B21 664691-001 647651-081 8GB SR PC3-12800R Reg Memory HPE 647899B21

Description:

The HPE 647899-B21 (option), 664691-001 (spare), and 647651-081 (assembly) refer to an 8GB DDR3-1600MHz ECC Registered DIMM designed for HPE ProLiant Gen8 servers. This memory module delivers reliable performance and error correction, making it ideal for virtualized workloads, database management, and mission-critical enterprise applications that require consistent uptime and data integrity.

Technical Specifications:

Manufacturer: Hewlett Packard Enterprise (HPE)
Model Numbers: 647899-B21 (option), 664691-001 (spare), 647651-081 (assembly)
Memory Type: DDR3 SDRAM – Registered ECC (RDIMM)
Capacity: 8GB
Speed: 1600 MHz (PC3-12800)
CAS Latency: CL11
Voltage: 1.5V
Rank: Single-rank x4
Pins: 240-pin DIMM
Error Correction: ECC (Error-Correcting Code)
Form Factor: RDIMM
Compatibility: HPE ProLiant Gen8 servers (DL, ML, SL, and BL series)
Use Case: Enterprise applications, virtualization, and server memory expansion