8GB KIT (4 x 2GB) For Intel D Series DH57DD (ECC Unbuffered) DX38BT (ECC Unbuffered) DX58SO2 (ECC Unbuffered). DIMM DDR3 ECC Unbuffered PC3-10600 1333MHz Single Rank RAM Memory. Genuine A-Tech Brand. 8GB KIT (4 x 2GB) DIMM DDR3 ECC Unbuffered PC3-10600 1333MHz Single Rank RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Intel D Series. (See Compatibility List Below)