The ProMOS 512MB (2 X 256mb) DDR PC2700U 2533 333MHz CL2.5 memory modules are high-quality components designed for optimal performance in computers. Made by ProMOS in Taiwan, these DDR memory modules feature a total capacity of 512MB split into two 256MB modules for enhanced reliability. With a bus speed of PC2700 (DDR-333) and a low latency of CL2.5, these memory modules are ideal for improving the speed and efficiency of your computer's memory operations. Upgrade your system with these reliable and efficient memory modules for enhanced performance.