Model: DDR2 SODIMM_x000D_ Capacity: 2GB_x000D_ Frequency: 667Mhz_x000D_ Working voltage: 1.8V_x000D_ Function: DDR2 200PIN Scope of application: laptop_x000D_ Pins of Memory DDR for Desktop=184 pins_x000D_ DDR for Laptop=200 pins_x000D_ DDR2 for Desktop=240 pins_x000D_ DDR2 for Laptop=200 pins_x000D_ DDR3 for Desktop=240 pins_x000D_ DDR3 for Laptop=204 pins_x000D_ Read First_x000D_ The Recognition of XP is around 3GB_x000D_ The Recognition of Win 7 32Bit is around 2.26-4.5GB_x000D_ The Recognition of Win 7 32Bit is around 8-16GB_x000D_ Before purchasing , please confirm which model is suitable for your Desktop/Laptop, usual models are as bellow:_x000D_ PC2 4200 = DDR2 533MHZ_x000D_ PC2 5300 = DDR2 667MHZ (Compatible with DDR2 533MHZ)_x000D_ PC2 6400 = DDR2 800MHZ (Compatible with DDR2 667MHZ, DDR2 533MHZ)_x000D_ PC2 8500 = DDR2 1066MHZ_x000D_ Colour: green_x000D_ Material: PCB_x000D_ Size: 7 x 3cm Package Contents:_x000D_ 1 x Memory_x000D_ Note: different batches of products are slightly different, the color random('t accept the specified color) does not affect the use Only the above package content, other products are not included._x000D_ 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. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_