Axiom 16GB PC4-17000 DDR4-2133MHz Registered ECC CL15 288-Pin DIMM 1.2V Dual Rank Memory Module. The Axiom UMEM16GBDDR4-AX is a high-performance 16GB DDR4-2133MHz Registered ECC memory module, designed for reliable operation in server environments. With a CL15 latency and operating at 1.2V, it offers robust performance and data integrity. This 288-pin DIMM supports dual rank configuration, making it suitable for enhancing server memory capacity and efficiency. Ideal for upgrading server systems requiring stable and responsive memory performance.