This item, 805351-B21, is the HPE option part number for the product described as 32GB (1 x 32GB) Dual Rank x4 DDR4-2400 CAS-17-17-17 Registered Memory Kit. Further details below.

HPE memory option 805351-B21 is a DRAM module for use in certain HPE ProLiant Gen9 (v4 versions only!) 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 805351-B21 memory is a 288-pin DIMM form factor, and has a capacity of 32 gigabytes. This memory is PC4-19200, with a speed of 2400 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.

805351-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 809083-091 will be visible on the label on the module.

From HPE:
Does your server have the memory it needs to perform as its role expands over time? When you choose HPE DDR4 SmartMemory, you get great performance, reliability, and efficiency that provides the compatibility, capacity and bandwidth you need to productively manage your expanding workload with the HPE ProLiant Gen9 server, Apollo Family, Synergy and Blade Systems. The quality and reliability of DRAM are more important now than ever, as data center trends such as server virtualization, cloud computing, the use of large database applications, have all increased the need for higher capacity memory with greater uptime. HPE SmartMemory goes through rigorous qualification and testing processes that unlock extended memory performance features available only with Hewlett Packard Enterprise Gen9 servers. This extensive testing ensures that HPE server memory is completely compatible with and optimized for HPE servers.

HPE Option Part #: 805351-B21
HPE Spare Part #: 819412-001
HPE Assembly Part #: 809083-091

Specifications:

• Type: DRAM
• Product Type: Memory module
• Form Factor: DIMM 288-pin
• Technology: DDR4 SDRAM
• Storage Capacity: 32 GB
• Registered or Buffered: Registered
• Data Integrity Check: ECC
• Chips Organization: X4
• Memory Speed: 2400 megahertz
• Memory Specification Compliance: PC4-19200
• Supply Voltage: 1.2 volt
• CAS Latency: CL17
• Latency Timings: 17-17-17
• RAM Features: Dual rank

Compatible with:
✅ BL460c Gen9 (v4)
✅ DL120 Gen9 (v4)
✅ DL160 Gen9 (v4)
✅ DL180 Gen9 (v4)
✅ DL360 Gen9 (v4)
✅ DL380 Gen9 (v4)
✅ DL60 Gen9 (v4)
✅ DL80 Gen9 (v4)
✅ ML110 Gen9 (v4)
✅ ML150 Gen9 (v4)
✅ ML350 Gen9 (v4)
✅ XL170r Gen9 (v4)
✅ XL190r Gen9 (v4)
✅ WS460c Gen9 (v4)
✅ and possibly others
Contact us via Live Chat if you have any questions about compatibility.

Last updated: 1/15/2023