Description:

The HP 647901-B21 16GB DRx4 PC3L-10600R registered memory module (also referenced as 664692-001 and 647653-081) is used in enterprise servers to provide high-capacity, error-checked RAM for stable and efficient system performance under heavy workloads. Commonly installed in HPE ProLiant and compatible rack and blade servers where registered ECC memory is required to support virtualization, database processing, and mission-critical applications, this DIMM enhances system reliability and throughput. IT technicians, system administrators, and data center maintenance teams use the 16GB DDR3-10600R module for memory upgrades, capacity expansions, retrofit projects, and replacement of failed or undersized server RAM. 

Applications:

The HP 647901-B21 16GB DRx4 PC3L-10600R registered memory module is commonly used in enterprise server environments including HPE ProLiant DL, ML, and BL series servers, virtualization hosts, database servers, and high-availability compute clusters where registered ECC memory is essential to maintain data integrity, system stability, and sustained performance under heavy workloads.

Technical Specifications:

• Manufacturer: HPE / HP
• Model / Part number: 647901-B21
• Alternate part numbers: 664692-001, 647653-081
• Product type: Registered DDR3 ECC memory module (RDIMM)
• Capacity: 16 GB
• Memory type: DDR3-10600R (PC3L-10600R)
• ECC: Error-correcting code registered
• DRx4: 4-rank memory configuration
• Speed: 1333 MT/s
• Voltage: Low-voltage DDR3 (PC3L standard)
• Form factor: Server DIMM (RDIMM)
• Compatibility: HPE ProLiant and compatible enterprise servers
• Application environment: Data centers, enterprise compute systems

Common Replacements:

• HPE 647653-091 16GB PC3L-10600R RDIMM
• Samsung 16GB DDR3-10600R ECC RDIMM
• Micron 16GB PC3L-10600R ECC RDIMM