Features 1) 4GB Kit 2x2GB 240p DDR2-667 DIMM 2) Equivalent OEM part numbers: HYS64T256020EU-3S-C2, EBE21UE8ACFA-6E-E, MT16HTF25664AY-667J3A, EBE21UE8ACWA-6E-E, M378T5663DZ3-CE6, M378T5663QZ3-CE6, MT16HTF25664AY-667E1, MT16HTF25664AY-667G1, MT16HTF25664AY-667G2, MT16HTF25664AY-667J2 , MT16HTF25664AY-667A3, MT16HTF25664AZ-667H1, NT2GT64U8HD0BY-3C, NT2GT64U8HB0JY-3C, HYMP125U64AP8-Y5, HYMP125U64CP8-Y5, KTH-XW4300/2G, SNPKU354C/2G, KVR667D2N5/2G. 3) This module is major brand approved and tested by Gigaram engineers to work for machines that uses this specifications. 4) This module is in stock and can ship today. 5) 100% Compatible and Lifetime Warranty from Gigaram.