64GB ( 1x 64GB Module ) DDR4 2666 MHz ( PC4-21300 ) DDR4 DIMM ( 288-Pin ) ECC LRDIMM ( Load Reduced DIMM ) 1.2V - DDR4 Standard Voltage Compatible Equivalent for Kingston KSM26LQ4/64HAM, KSM26LQ4/64HCM, KSM26LQ4/64HAI, KSM26LQ4/64HCI 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