Hynix 4GB Kit 2x2GB 1Rx16 PC3L-12800S DDR3L non-ECC Unbuffered SoDimm Laptop Memory Module HMT425S6AFR6A-PB.Hynix Part Number: HMT425S6AFR6A-PBSpecifications:Memory Type SoDimmCapacity 2GBPins 204 PinData Transfer Rate 1600MhzVoltage 1.35