OWC 4R8D54R4128G 128GB DDR5 4800 CL40 4Rx4 ECC RDIMM 1.1V

128GB DDR5 ECC RDIMM for Fujitsu PRIMERGY

This 128GB DDR5 4800 CL40 registered DIMM is built for Fujitsu PRIMERGY CX2550 M7, CX2560 M7, RX1440 M2, RX4770 M7 and RX8770 M7 servers. It delivers 128GB in a single 288-pin module operating at 1.1V with ECC and 4Rx4 organisation. The module targets administrators upgrading memory capacity in these specific platforms.

JEDEC DDR5 4800 registered interface limits

The module conforms to the JEDEC DDR5 4800 (PC5-38400) standard with CL40 latency and registered buffering. Registered DIMMs of this type cannot be mixed with unbuffered or load-reduced ECC memory in the same system. They are not compatible with standard desktop platforms that require unbuffered modules.

128GB single-module capacity and headroom

A single 128GB stick provides substantial capacity for memory-intensive server workloads such as virtualization, databases and large-dataset processing. The 4Rx4 rank structure supports high density within the DDR5 4800 speed envelope. Systems needing more capacity must add further modules of identical specification; the module itself cannot exceed its 128GB limit.