Micron (Crucial) MTA9ASF2G72AZ-3G2B1R (16GB DDR4-3200 ECC UDIMM/CL22/1Rx8/1.2V/288-Pin)

The Micron MTA9ASF2G72AZ-3G2B1R is a single-rank 16GB ECC UDIMM from the same Micron server-memory family as the site's existing 32GB Crucial part, aimed at lighter-load workstation builds that don't need dual-rank density.

ECC error correction in a single-rank (1Rx8) unbuffered module, a simpler organization than dual-rank modules that some boards prefer for maximum per-channel speed at lower total capacities. As a Micron-built module it uses first-party DRAM from the chip manufacturer itself. For AMD Threadripper (non-PRO), Intel Xeon W, and workstation or entry-server boards with explicit ECC UDIMM support. Verify the board's qualified vendor list; single-rank modules are supported on essentially all ECC UDIMM platforms. Against the Crucial (Micron) MTA18ASF4G72AZ-3G2B1, covered elsewhere on this site, that module doubles this drive's capacity in a dual-rank configuration. Against the Kingston Server Premier KSM32ED8/16HD, also covered elsewhere on this site, both offer 16GB ECC UDIMM capacity, with this Micron module using single-rank rather than dual-rank organization.