Model: DDR2 SODIMM Capacity: 2GB Frequency: 667Mhz Working voltage: 1 Function: DDR2 200PIN Scope of application: laptop Pins of Memory 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 XP is around 3GB The Recognition of Win 7 32Bit is around 2 The Recognition of Win 7 32Bit is round 8-16GB Before buying , please verify which mannequin is appropriate in your Desktop/Laptop, ordinary 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 Colour: green Material: PCB Size: 7 x 3cm Package Contents: 1 x Memory Note: diversified batches of products are slightly different, the color random('t settle for the desired color) would not impression the use Only the above package content, other merchandise are not included. Note: Light and diverse reveals can cause the colour of the thing within the picture a bit various from the real thing. The size allowed error is +/- 1-3cm.