
The M393A4K40BB1-CRC0Q is a 32GB DDR4-2400 Registered DIMM (RDIMM) memory module from Samsung. This is a server-grade memory module designed for use in enterprise servers and workstations. “DDR4-2400” indicates that it operates at a data transfer rate of 2400 megatransfers per second (MT/s). “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 “32GB” denotes its storage capacity. The “CRC0Q” at the end of the model number likely indicates a specific configuration, speed grade, or revision specific to a customer or production run. Samsung is a major manufacturer of memory modules, and this part is typical of their enterprise-grade offerings, designed for reliability and performance in demanding server environments.