Complete with Serial-ATA RAID, dual channel DDR400, integrated fast Ethernet, 6 channel audio, and of course, the on-board Radeon 9100IGP, the ST61G4 stacks up well against comparable Intel chipset based systems. But that?s not all that Shuttle is hiding within the confines of the ST61G4. They?ve also launched their brand new SilentX 250 watt power supply unit with this XPC, which as you?ll see in our benchmarks, made a rather impressive and surprising difference in noise measurements, despite its extra wattage.