Extend your USB peripherals by another 16ft. This repeater cable has built-in buffer & actively regenerates the signals to preserve data integrity and can be daisy chained up to four-times for a total of 65ft. Active repeaters provide maximum flexibility for USB devices and ideal for security and surveilance video, PC digital audio systems and other peripherals with USB interface that are beyond the reach of regular cables. (Connectors: USB A Male to Female; Length: 16ft) * USB 2.0 and 1.1 compliant * Support speeds of 480 Mbit/s (High Speed), 12 Mbit/s(Full Speed), and 1.5 Mbit/s (Low Speed) serial data transmission* Supports EHCI/UHCI/OHCI Interface* Windows 98, XP, 7, 8, and Mac OS compatible* Cable Length: 5M / 16.4ft* Cable Size: 28AWG* Downstream Connector: USB type A Female* Upstream Connector: USB type A MaleTECH NOTE: A SHORT USB cable (1.5 or 3ft) can only be attached to the end of this extender for proper functionality. The extending of a USB cable is NOT compatible with ALL devices - such as certain hard drives that require specialize signal buffering. This cable is intended to be connected to a computer system (such as a Windows or Mac computer. The operating system in some cases will auto-install any require USB/hub driversEstimated ACTUAL Quantity Available: 60. Should you need more stock than our advertised quantity of 50pcs, please click the CONTACT SELLER link and let us know how many you need and we will update the TOTAL QUANTITY available.