 "Crucial - DDR4 4 GB DIMM 288-pin" " Crucial 288-pin CT4G4RFS8213 Server Memory CDWG.com
"More speed. More bandwidth. More efficient. Next generation DDR4 memory is here.Overcome one of your greatest server limitations: memory. From networking, cloud computing, and virtualization to HPC, Big Data and more, memory - dependent server applications require increasingly higher densities of memory and higher levels of performance than are attainable on current DDR3 technology. Enter Crucial DDR4 server memory.This product is a 4GB DDR4 server module that operates at speeds up to 2133 MT/s and has a CL15 latency. It is a Registerred DIMM (RDIMM) with Error Correction Code (ECC). It conforms to the industry standard DDR4 RDIMM layout of 288 pins and is compatible with systems that take DDR4 2133MT/s RDIMM memory." 
 "Crucial - DDR3L 4 GB SO-DIMM 204-pin" " Crucial 204-pin CT4G3S186DJM System Memory (RAM) CDW.com