HPE 32GB 2Rx4 DDR4-2400 CAS-17 RDIMM Memory Kit

805351-B21 is a 32 GB, 2Rx4 registered DIMM running at 2400 MT/s with CAS latency 17 and 1.2 V. Servers built around DDR4-2400 are its natural home, where matching the existing speed keeps the whole memory set stable.

When one fails, service paperwork may call for 819412-001 instead of the kit number. That is the spare number listed for the same module, so either one leads back to this part.

Pairing identical modules per channel is the usual approach for a stable memory configuration, so most orders for this part are placed in matched quantities. Servers of this age often have most memory slots free, so buyers frequently add modules in matched pairs to widen the memory channels in use.

The kit is offered new and refurbished, each with a 1 year or 3 years warranty.