he M3-ATX-HV is an intelligent, high power, automotive (car, boat, electric cart) DC-DC ATX power supply designed for car PC and other battery-powered PC applications. Designed to provide power and to control the ON/OFF switch of a motherboard based on ignition status (Car PC), the M3-ATX-HV is a wide input (6 to 34V) vehicle / car / battery operated ATX power supply capable of surviving tough car engine cranks (down to 6V) as well as transient over-voltage situations. Just connect it to your car / boat / RV / solar battery and power up your PC. The M3-ATX-HV is based on similar electrical similar design as the M2-ATX-HV but with dramatic size reductions (picoPSU plug-in style). By using Patent Pending HyperWatt[TM] technologies, the M3-ATX-HV packs an impressive amount of power relative with its very small footprint. M3-ATX-HV has several key advantages over traditional power supplies:Very small, can build ultra-compact PC enclosures and slim server enclosures.Programmable shutdown / sleep modes via optional serial cable.Fits any motherboard equipped with a 20 or 24pin ATX connector.100% silent, fanless, no moving parts.Operates from 6-34V, multi-chemistry batteries supported.Highly efficient design, does not produce a lot of heat.Ideal for low power Intel as well as all VIA or AMD processors.