32GB ( 1x 32GB Module ) DDR4 2400 MHz ( PC4-19200 ) DDR4 DIMM ( 288-Pin ) ECC RDIMM ( Registered DIMM ) 1.2V - DDR4 Standard Voltage Compatible Equivalent for HP 809083-09X, 843315-B21, 844950-001, 851007-B21, 809083-091, 805351-B21, 805351-H21, 805351-S21, 843315-S21, 861110-001 High performance Memory RAM upgrade designed for Server/Workstation Systems All modules undergo quality assurance testing to ensure dependable and reliable performance Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase