US Automation Technology. Ltd (USAT) is an American join venture in China, We have strong technology from design to manufacturing products, we offer technology support and after service. USAT PLC 100% compatible with Mitsubishi FX1N and FX2N 3U series, we also distribute many world-class products. Please go www.usat-online.com for details on complete product lines. We specialize in providing quality industrial part at low costs in the world.