As NZXT points out, the IU01 addresses an issue common to most gaming PCs, a lack of substantial power and expandability from front panel USB. While it is not uncommon for motherboards to have several USB headers, cases often only have one or two sets of front panel USB ports to connect to them. This limits the number of devices that users can easily plug in without crawling around behind their PC, and with the popularity of USB devices it is possible to run out of ports entirely. Some USB devices may also have higher voltage requirements than can be provided from the motherboard through a traditional USB port. This is where the NZXT IU01 can really help.