4GB ( 1x 4GB Module ) DDR3 1600 MHz ( PC3-12800 ) DDR3 DIMM ( 240-Pin ) ECC UDIMM ( ECC Unbuffered DIMM ) 1.5V - DDR3 Standard Voltage Compatible Equivalent for Kingston KVR16E11S8/4, KTL-TC316ES/4G, KTH-PL316ES/4G, KVR16E11S8/4I, KTD-PE316ES/4G 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