Visioneer wrote the book on ease-of-use. The revolutionary OneTouch technology simplifies the way people use a scanner. The OneTouch buttons are pre-configured for common scanning tasks so you get great results within minutes of opening the box. Button settings can be customized to unleash even more power for advanced users. The Visioneer OneTouch 9420 USB is blazing fast. The Hi-Speed USB logo is your assurance that the OneTouch 9420 USB transfers data to your computer up to 40 times faster than a USB 1.1 scanner yet the OneTouch 9420 is fully compatible with all USB ports including USB 1.1. 48-bit internal color capability recognizes over 281 trillion colors. 48-bit scanners capture more detail in the shadow and highlight areas of an image than their 42-bit predecessors, so you'll get brighter yellows, richer reds, cooler blues, and everything between.