It's the MiniBox picoPSU. This power supply is designed for embedded systems and it's barely the size of an ATX connector and has a couple of Molex connectors and a floppy connector.
It's designed for use in embedded systems where space is at a premium. It's 100% silent, has a lack of messy cables and provides enough power to keep a Pentium M or Via C3 processor juiced up, depending on the other peripherals in the system.
Just imagine the modding possibilities when your power supply is no bigger than a couple of AA batteries!