4GB 2x2GB 2Rx8 Non-ECC DDR2 PC2-5300S MT16HTF25664HY-667E1 Laptop Memory Brand: Micorn MPN: HMP125S64CP8-Y5 AB / MT16HTF25664HY-667E1 Type: DDR 2 SDRAM Form Factor: SO-DIMM Number of Modules: 2 Capacity per Module: 2 GB Number of Pins: 200 Bus Speed: PC2-5300 667 MHz Memory Features: Unbuffered, Non-ECC Typical Operating Supply Voltage: 1.8V Compatibility: Laptop Warranty: 90 Days Replacement