IOGEAR has made it simple to add two SuperSpeed USB 3.0 ports to your existing PC, without changing the motherboard or buying a brand new computer. This card is capable of supporting SuperSpeed USB 3.0 (5Gbps). This increased bandwidth means faster upload of photos or MP3s and drastically better performance of storage devices such as external hard drives. USB 3.0 is also full-duplex, it can upload and download simultaneously (bi-directional), USB 2.0 was half-duplex. USB 3.0 also has new power-management capabilities that allow for unused devices to enter idle, suspend and sleep modes. This new efficient use of energy cuts down on your power consumption. You can also charge your USB devices faster using USB 3.0.