Actual Items manufactor or Batch Number may vary<br> Model: DDR2 SODIMM<br> Capacity: 4GB<br> Frequency: 800Mhz<br> Function: DDR2 200PIN<br> Scope of application: laptop<br> Pins of Memory RAMS<br> DDR for Desktop=184 pins<br> DDR for Laptop=200 pins<br> DDR2 for Desktop=240 pins<br> DDR2 for Laptop=200 pins<br> DDR3 for Desktop=240 pins<br> DDR3 for Laptop=204 pins<br> Read First<br> The Recognition of XP is around 3GB<br> The Recognition of Win 7 32Bit is around 2.26-4.5GB<br> The Recognition of Win 7 32Bit is around 8-16GB<br> Before purchasing rams, please confirm which model is suitable for your Laptop, usual models are as bellow:<br> PC2 4200 = DDR2 533MHZ<br> PC2 5300 = DDR2 667MHZ (Compatible with DDR2 533MHZ)<br> PC2 6400 = DDR2 800MHZ (Compatible with DDR2 667MHZ, DDR2 533MHZ)<br> PC2 8500 = DDR2 1066MHZ<br> The appearance and color of different batches of products may be different, which will not affect the use.<br> Colour: random colors, don't accept the specified color<br> Material: PCB<br> Size: 7x3cm<br> Package Contents:<br> 1 * RAM<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.