Edge Memory 16GB PC4-17000 DDR4-2133MHz ECC Unbuffered CL15 288-Pin DIMM 1.2V Dual Rank Memory Module. The PE250256 Edge Memory 16GB DDR4-2133MHz ECC unbuffered memory module provides high-performance reliability for servers and workstations. With a capacity of 16GB and operating at 2133MHz, it supports ECC (Error-Correcting Code) functionality to enhance data integrity. Featuring a CL15 latency and dual-rank configuration, this 288-pin DIMM module operates at a low voltage of 1.2V, making it efficient and suitable for demanding computing environments requiring stable and dependable memory performance.