Lenovo ThinkSystem 4ZC7A08744 is a 64GB server memory module for supported ThinkSystem systems. Its 64GB capacity adds memory for server workloads, while the registered RDIMM-A format identifies it as a server memory component.
The module uses TruDDR4 at 2933MHz, with a dual-rank x4 layout (2Rx4) and 1.2V operating voltage. Lenovo lists it for ThinkSystem SR635 and SR655 servers. This description refers to the specific 4ZC7A08744 module and its published configuration.