64GB ( 1x 64GB Module ) DDR4 2933 MHz ( PC4-23400 ) DDR4 DIMM ( 288-Pin ) ECC LRDIMM ( Load Reduced DIMM ) 1.2V - DDR4 Standard Voltage Compatible Equivalent for HP P03054-191, P00926-K21, P18451-B21, P06190-001, R0X06A, P14637-001, P19251-001, P03054-091, P19044-B21, P28219-B21 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