4GB ( 1x 4GB Module ) DDR3 1333 MHz ( PC3-10600 ) DDR3 DIMM ( 240-Pin ) Non-ECC UDIMM ( Unbuffered DIMM ) 1.35V - DDR3 Low Voltage Compatible Equivalent for Micron MT16KTF51264AZ-1G4, MT16KTF51264AZ-1G4M1 High performance Memory RAM upgrade designed for Desktop Computers 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