Product Details  memory ThinkPad T60 Business d530 memory PowerBook G4memory  DDR1 DDR PC400 1GB 64*8 LONGDIMM We supply major Brand & 3rd Party Memory module with competitive price. Original HYNIX SAMSUNG QIMONDA ELPIDA MICRON chip ---2.5 volts operation ---TSOP packaging ---Conforms JEDEC standards & 100% motherboards test ---DLL aligns DQ & DQS transition with CK transition ---Double-data-rate architecture ---Bi-directional data strobe (DQS) ---Differential clock inputs (CK and /CK) ---Auto refresh & self refresh ---8192 refresh cycles /64ms ---Programmable Burst length (2,4,8) ---Serial Presence Detect with EEPROM ---Lifetime warranty