Lenovo ThinkSystem 128GB 2Rx4 DDR5-6400 RDIMM TruDDR5 Memory

DDR5-6400 is the speed that distinguishes the Lenovo ThinkSystem 4X77B07421. It is a 128GB 2Rx4 RDIMM with ECC from the TruDDR5 line, listed for the SR645 V3 and SR635 V3.

Faster memory only helps if the processor and server firmware can run it at that rate. Before ordering, check that your configuration supports 6400 MT/s; otherwise the module may run slower, and you pay for speed you cannot use.

Capacity is 128GB per module, which suits large virtualization hosts, databases and analytics nodes where memory per socket is a limit. The two-rank, x4 layout is the standard registered design for this size.

The module is available in all three conditions. New and refurbished carry a choice of 1 year or 3 years of warranty, and used carries 90 days. An RFQ for 4X77B07421 should include the processor so we can verify the memory speed.