OWC 128GB (2x64GB) DDR4 2400 CL17 4Rx4 288-pin 1.2V ECC LRDIMM Kit Cisco UCS B260 M4 B460 M4

Cisco UCS Server Memory Kit

This 128GB kit contains two 64GB DDR4 LRDIMM modules built for Cisco UCS B260 M4 and B460 M4 servers. Each module runs at 2400 MT/s with CL17 latency and operates at 1.2V. The load-reduced design reduces electrical load on the memory controller to support high-density configurations.

Sustained Load Behaviour

ECC load-reduced memory maintains data integrity during continuous server workloads by correcting single-bit errors on the fly. The 4Rx4 organisation allows the memory controller to address more ranks per channel without exceeding electrical limits. Backward compatibility with 2133 MT/s lets the kit run reliably if the platform downclocks under thermal pressure.

DDR4 LRDIMM Constraints

The DDR4 LRDIMM standard requires a compatible server chipset that supports load-reduced buffering; standard desktop or workstation boards will not recognise these modules. Mixing LRDIMMs with registered or unbuffered DIMMs in the same system is not supported. The 288-pin form factor fits only DDR4 slots wired for ECC load-reduced operation.