HP 8GB (1x8GB) PC3-12800R DDR3-1600 Registered Memory Kit (647899-S21) is an HPE SmartBuy server memory module designed for compatible HP ProLiant Gen8 systems. It provides 8GB of DDR3-1600 SDRAM in a single-rank x4 configuration, with ECC Registered (RDIMM) signaling, CL11 latency, and 1.5V operation. HPE documentation identifies 647899-S21 as the SmartBuy/S-Buy version of the 647899-B21 memory kit. HPE Support
- Part Number: 647899-S21
- Manufacturer: HP / HPE
- Product Type: Server Memory Module
- Memory Capacity: 8GB
- Module Configuration: 1 × 8GB
- Memory Type: DDR3 SDRAM
- Memory Standard: PC3-12800R / DDR3-1600
- Speed: 1600MHz
- Error Correction: ECC
- Signal Type: Registered (RDIMM)
- Rank: Single Rank x4 (1Rx4)
- CAS Latency: CL11
- Form Factor: DIMM
- Pins: 240-pin
- Voltage: 1.5V
- Application: HP ProLiant server memory
- Compatible Platforms: HP ProLiant Gen8 systems, including supported DL380e Gen8 and other compatible platforms. HPE Support
- Related Option Part: 647899-B21
- Related Spare Part: 664691-001
- Assembly Part: 647651-081