HPE 8GB 1Rx8 PC4-2666V-R Registered Smart Memory Kit (840755-191) is an enterprise server memory module designed for compatible HPE ProLiant Gen10 platforms. It provides 8GB of single-rank ECC Registered DDR4 memory operating at 2666 MT/s, with PC4-21300V-R bandwidth, CL19 timings, 1.2V operation, and a 288-pin DIMM form factor. HPE identifies 840755-191 as the assembly part number for option 838079-B21 and spare 868841-001.
- Part Number: 840755-191
- Option Part Number: 838079-B21
- Spare Part Number: 868841-001
- Manufacturer: HPE / Hewlett Packard Enterprise
- Product Type: Registered Server Memory Module
- Capacity: 8GB
- Memory Type: DDR4 SDRAM
- Memory Speed: 2666 MT/s
- Memory Standard: PC4-21300V-R / PC4-2666V-R
- Rank: Single Rank (1Rx8)
- ECC: Yes
- DIMM Type: Registered DIMM (RDIMM)
- CAS Latency: CL19
- Pin Count: 288-pin
- Voltage: 1.2V
- Module Configuration: 1 × 8GB
- Organization: 1G × 72, x8 DRAM
- HPE Smart Memory: Yes
- Application: Enterprise Server Memory
- Compatible Systems: Selected HPE ProLiant Gen10 platforms, including DL325 Gen10 and DL385 Gen10 systems supporting DDR4-2666 RDIMM memory.
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