In addition to their current case lineup, NZXT produces several different types of accessories, from cables to power supplies, cooling fans to fan controllers, and other case accessories as well. The item we have for review today falls into that last category, the IU01 USB Expansion module. 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. 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.