Memory chip:16IC Type: DDR3 DIMM Frequency:1600MHz Number of Pins: 240pin Capacity:4GB Voltage:1.5V 1600MHz=CL11 DDR3 1600= PC3-12800 Size: 13.6*3cm Color: Green Material: PCB Package Contents: 1 * Memory RAM Only the above package content, other products are not included. 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. Function: Unbuffered, Non-ECC, Non-Registered 100% New chips.high quality . Tested works perfectly before shipping. Please note: this memory is just for AMD motherboard, it does not fit motherboard or ECC Server .Model Desktop DDR3 4GB 1600MHz. 1600 MHz can be compatible with DDR 3 1333 MHz / 1066 MHz