The M393A8G40AB2-CWE is a 64GB DDR4-3200 Registered DIMM (RDIMM) memory module from Samsung. This is a server-grade memory module designed for use in enterprise servers and high-performance workstations. “DDR4-3200” indicates that it operates at a data transfer rate of 3200 megatransfers per second (MT/s), which is a faster speed than the previously mentioned 2400 MT/s modules. “RDIMM” signifies that it is a registered module, which includes a register to buffer address and command signals, enhancing stability and allowing for higher memory capacities in server systems. The “64GB” denotes its storage capacity. The “CWE” at the end of the model number likely indicates a specific configuration, speed grade, or revision, possibly related to a specific customer or production run. Samsung is a major manufacturer of memory modules, and this part is typical of their enterprise-grade offerings, designed for high performance and reliability in demanding server environments.
