HP J9P82AA-SUB - HP 8GB PC4-2133 Memory for Z440/Z640/Z840 WS
AddOn HP J9P82AA Compatible Factory Original 8GB DDR4-2133MHz Registered ECC Single Rank x4 1.2V 288-pin CL15 RDIMM - 100% compatible and guaranteed to work J9P82AA-AM 821455234570
Arch Memory Replacement for HP J9P82AA 8GB 288-Pin DDR4 RDIMM Server RAM for Z440 Z640 Z840 at Amazon.com