8GB ( 1x 8GB Module ) DDR4 2666 MHz ( PC4-21300 ) DDR4 DIMM ( 288-Pin ) ECC RDIMM ( Registered DIMM ) 1.2V - DDR4 Standard Voltage Compatible Equivalent for Kingston KTH-PL426S8/8G, KSM26RS8/8HCI, KSM26RS8/8MEI, KSM26RS8/8HAI, KTD-PE426S8/8G, KTL-TS426S8/8G, KSM26RS8/8HDI 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