Type: MemoryType: Laptop MemoryManufacturer HynixManufacturer Part #HYMP 164U64CP6-Y5 AB-CMemory Type DDR2 SDRAMCapacity 512MBPins 240 PinBus Type PC-5300Error Correction Non-ECCCycle Time 6nsCas CL5Data Transfer Rate 667MhzMemory Clock166Mhz1.8 MAKE SURE YOU SEE THE PHOTOS CAUSE THE ITEM WILL BE SEND TO YOU EXACTLY AS IT SEEMSTELL: FOR MORE INFORMATION GO TO OUR LINK: /products/Hynix-512MB-PC2%-DDR2%252d667MHz.html.