I wanted a good, affordable 4-input interface while at the same time avoiding that annoying red color, if you know what I mean. This interface has worked perfectly and with a low enough noise for serious recordings.
It can be powered by the same USB used to connect to the PC, but if you power it with the AC adapter, this interface also gives you two extra functioning USB inputs which have actually been quite useful when my PC's running out of USB slots.
For those new to interfaces, the inputs and outputs can be freely routed through a control software in the PC.
All in all very satisfied.