Patriot Retail's PSD21G8002 is a DDR2 800 module that combines excellence in performance with a 240-pin design, specifically made for systems requiring high-speed memory operations. This module, featuring DDR2-800 speed and a 1GB dual configuration, caters to those seeking an upgrade in system efficiency without going overboard on memory size. As part of the PC2-6400 category, it ensures compatibility and reliability for users aiming to enhance their computer's performance. Manufactured by Patriot Retail, a company known for its commitment to high-quality and durable products, the PSD21G8002 is an ideal choice for users who need a performance increase on a budget.