"Here is the device in action: it has four DIMM slots for DDR memory, a
PCI bus interface, a SATA interface and a batter on board that will apparently
last for 16 hours before losing all the data on the card. (Better plug it back
in, quick!) It uses the PCI bus for power, not for communications as the SATA
bus is the part that moves data back and forth between the system and iRAM."