Pins of Memory : DDR for Desktop = 184 pins DDR2 for Desktop = 240 pins DDR3 for Deaktop = 240 pins DDR for Laptop = 200 pins DDR2 for Laptop = 200 pins DDR3 for Laptop = 204 pins DDR3L for Laptop = 204 pins Read First: The Recognition of XP is around 3GB The Recognition of Win 7 32Bit is around 2.26-4.5GB The Recognition of Win 7 64Bit is around 8-16GB Note: The products are slightly different for different batches, which will not affect the use. Colour: green Material: PCB Size: Length: 6.8cm Package Contents: 1 * Ram Memory Only the above package content, other products are not included. Note: Light reflection 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. Name:Laptop Memory Ram Name:Ram Memory Type: DDR SO-DIMM Frequency: PC-2700 / DDR 333 Mhz