800 MHz can be compatible with DDR 2 667MHz / 533MHz<br> Memory chip:16IC<br> Type: DDR2 DIMM<br> Memory Channel: Dual Channel<br> Function: Non-ECC<br> Color: Green<br> Material: PCB<br> Memory Socket: Long--DIMM<br> Frequency:800MHz<br> Number of Pins: 240pin<br> Capacity:4GB<br> Voltage:1.8V<br> DDR2 type:<br> PC2-4200 = DDR2 533MHZ<br> PC2-5300 = DDR2 667MHZ<br> PC2-6400 = DDR2 800MHZ (Compatible with DDR2 667MHZ, DDR2 533MHZ)<br> Please note: this memory is just for AMD motherboard, it does not fit Intel motherboard or ECC Server .Model Desktop DDR2 4GB 800MHz.<br> The appearance and color of different batches of products may be different, which will not affect the use<br> Package Contents:<br> 1 x RAM<br> 2 x Cooling Vest(Random colors and appearances Do not accept designation)<br> 2 x Sticker(Random colors and appearances Do not accept designation)<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.