OWC 128GB (8x16GB) DDR4 2400 CL17 ECC Registered RDIMM 288-pin 1.2V Cisco UCS B200 M4 C220 M4

Server-grade memory kit

This 128GB kit contains eight 16GB DDR4 2400 CL17 ECC registered RDIMMs built for Cisco UCS B200 M4 and C220 M4 servers. Each module runs at 1.2V with a 1Rx4 organisation and no heat spreader. It is designed for workstation and server platforms that require registered ECC memory and will not work in standard desktop systems.

Sustained workload behaviour

Registered buffering and ECC correction keep data integrity stable during continuous multi-threaded tasks such as virtualisation, database serving or long render jobs. The CL17 latency at 2400MHz delivers predictable throughput without the error accumulation that can degrade unbuffered memory over extended periods. Modules are validated to JEDEC PC4-19200 specifications for reliable 24/7 operation.

Installation notes

Install all eight modules in matched channels according to the Cisco server memory population guide for the B200 M4 or C220 M4. Do not mix these registered DIMMs with unbuffered or load-reduced ECC memory, as the systems will not post. The 288-pin form factor fits only DDR4 registered slots; desktop DDR4 slots are physically incompatible and will not accept the modules.