2X(Actual Items manufactor or Batch Number < />Model: DDR2 < />: 4GB< />Frequency: 667Mhz< />Function: DDR2 200PIN< />< />Scope of application: laptop< />Pins of ry < />DDR for Desktop=184 pins< />DDR for Laptop=200 pins< />DDR2 for Desktop=240 pins< />DDR2 for Laptop=200 pins< />DDR3 for Desktop=240 pins< />DDR3 for Laptop=204 pins< />Read First< />The Recognition of is around 3GB< />The Recognition of Win 7 32Bit is around 2.26-4.5GB< />The Recognition of Win 7 32Bit is around 8-16GB< />Before hasing , please confirm which model is suitable for your Laptop, usual models are as bellow:< />PC2 4200 = DDR2 533MHZ< />PC2 5300 = DDR2 667MHZ (Compatible with DDR2 533MHZ)< />PC2 6400 = DDR2 800MHZ (Compatible with DDR2 667MHZ, DDR2 533MHZ)< />PC2 8500 = DDR2 1066MHZ< />The appearance and color of different batches of produc may be different, which will not the use.< />Colour: colors, 't accept the specified color< />Material: PCB< />Size: 7x3cm< />< />Package Conten:< />1 * RAM)