 "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." 
 "HP 32GB 4RX4 PC4-2133P-L KIT" "726722-B21-'s detail page - Server Nexus LLC"
 Product Description HP - DDR4 - 32 GB - LRDIMM 288-pin Product Type RAM memory Capacity 32 GB Memory Type DDR4 SDRAM - LRDIMM 288-pin Upgrade Type System specific Data Integrity Check ECC Speed 2133 MHz ( PC4-17000 ) Latency Timings CL15 ( 15-15-15 ) Features Quad rank , Load-Reduced Voltage 1.2 V OEM Manufacturer Equivalent Part Number HP 726722-B21 Designed For ProLiant BL460c Gen9, BL660c Gen9, DL160 Gen9, DL180 Gen9, DL360 Gen9, DL380 Gen9, DL80 Gen9, ML350 Gen9, WS460c Gen9, XL170r Gen9, XL190r Gen9, XL230a Gen9