4GB KIT (2 x 2GB) For Asus M5 Motherboard Series M5A78L-M LX V2 (ECC Unbuffered) M5A78L-M LX3 (ECC Unbuffered) M5A87 (ECC Unbuffered) M5A88-M (ECC Unbuffered) M5A88-M Evo (ECC Unbuffered) M5A88-V Evo (ECC Unbuffered) M5A97 Evo (ECC Unbuffered) M5A97 LE R2.0 (ECC Unbuffered) M5A97 Pro (ECC Unbuffered) M5A99FX Pro R2.0 (ECC Unbuffered) M5A99X Evo (ECC Unbuffered). DIMM DDR3 ECC Unbuffered PC3-12800 1600MHz RAM Memory. Genuine A-Tech Brand. 4GB KIT (2 x 2GB) DIMM DDR3 ECC Unbuffered PC3-12800 1600MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Asus M5 Motherboard Series. (See Compatibility List Below)