The CMX1024-3200PRO is a 1 GByte, two bank unbuffered DDR SDRAM DIMM. This module was developed for gaming and graphics applications that require large memory arrays. It offers an unprecedented combination of high speed and high density. This memory has been verified to operate at DDR400 (200 MHz at 3-4-4-8). This module is also available in matched pairs of "TwinX" modules tested together in a dual channel DDR motherboard. As part of Corsair's new XMS ProSeries, this module includes the new high efficiency aluminum XMS heatsink, and 18 activity LED's that show the level of memory activity on each bank. It has been tested extensively in a variety of motherboards commonly used in gaming rigs.