This item, 815100-B21, is the HPE option part number for the product described as 32GB (1x32GB) Dual Rank x4 DDR4-2666 CAS-19-19-19 Registered Smart Memory Kit. Further details below.
HPE memory option 815100-B21 is a DRAM module for use in certain HPE ProLiant Gen10 servers. This is genuine HPE memory. This is NOT third party or generic memory. A sampling of compatible machines is found below but that list not necessarily complete. Feel free to contact us to verify compatibility with your machine. The 815100-B21 memory is a 288-pin DIMM form factor, and has a capacity of 32 gigabytes. This memory is PC4-21300, with a speed of 2666 Mhz. This memory is one of our most popular products. Please note that this is Registered memory, which cannot be mixed in the same server as Unbuffered memory.
815100-B21 is the option part number used by HPE to reference this memory, but that part number won't appear anywhere on the module. The HPE assembly number of 840758-091 will be visible on the label on the module.
HPE Option Part #: 815100-B21
HPE Spare Part #:
HPE Assembly Part #: 840758-091
- Type: DRAM
- Product Type: Memory module
- Form Factor: DIMM 288-pin
- Technology: DDR4 SDRAM
- Storage Capacity: 32 GB, 32 GB
- Registered or Buffered: Registered
- Data Integrity Check: ECC
- Module Configuration: 4096 x 72
- Chips Organization: X4
- Memory Speed: 2666 megahertz
- Memory Specification Compliance: PC4-21300
- Supply Voltage: 1.2 volt
- CAS Latency: CL19
- Latency Timings: 19-19-19
- RAM Features: Dual rank
✅ BL460c Gen10
✅ DL360 Gen10
✅ DL380 Gen10
✅ DL560 Gen10
✅ DL580 Gen10
✅ ML110 Gen10
✅ ML350 Gen10
✅ and possibly others
Contact us via if you have any questions about compatibility.
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