A-Tech 128GB DDR4 2933 ECC RDIMM 4Rx4 Server Memory

128GB DDR4 2933 ECC RDIMM Module

This A-Tech module is a 128GB DDR4 2933MHz PC4-23400 ECC Registered DIMM built with Samsung chipset. It operates at 1.20V with CL21 latency and a 4Rx4 rank configuration. The 288-pin DIMM is designed as a compatible replacement for the Samsung M393AAG40M3B-CYF part number. It targets server and workstation systems requiring high-capacity registered memory with error correction.

Suited for high-density server upgrades.

This memory suits administrators upgrading compatible servers or workstations that support DDR4 2933MHz ECC RDIMM modules in a 4Rx4 organisation. It is not for desktop PCs or laptops that accept only unbuffered non-ECC UDIMMs. It is also not for systems limited to lower ranks or speeds below PC4-23400. Buyers must verify their platform's qualified vendor list before purchase.

Deciding spec: 4Rx4 registered ECC at DDR4 2933

The single specification that determines fit is the 4Rx4 registered ECC organisation running at DDR4 2933MHz (PC4-23400). Many server chipsets restrict the number of load-reduced or quad-rank modules per channel, so this rank structure dictates whether the motherboard can address the full 128GB capacity. If the system requires 1Rx4, 2Rx4 or 2Rx8 ranks instead, this module will not function correctly.