Description: This 2GB XMS2 memory upgrade kit contains two 1GB memory modules designed to deliver outstanding performance in the latest generation of DDR2-based motherboards. It has been tested extensively in multiple DDR2 motherboards to ensure compatibility and performance at its rated speed and has been verified to operate at 800MHz at the low latencies of 5-5-5-12-T1. Each memory module operates at 1.9V.