This product is the latest generation of high-power PEM fuel cell stack developed by SHPT, using low contact resistance and high corrosion resistant metal bipolar plate as well as high durability MEA. It has Highly integrated module design and compact structure. It also can operate at high temperature without external humidification. PROME M4M also has excellent reliability and environmental versatility, and is capable of cold-start at -30℃ without external heating assistance.