Apollo23 3ft USB 2.0 Male to Female M/F Spring Spiral Retractable Cable USB A male to female connector Backward compatible with USB 1.0 and 1.1 Cable can stretch maximum length up to about 90cm This is a standard Male to Female USB 2.0 cable with A-type connections on both ends. This is typically the style of connection found on the backs of PCs. USB 2.0 cables are backwards compatible as they can carry a USB 1.0 or 1.1 signal. USB cables are used to connect devices such as digital cameras, digital video cameras, scanners, printers, web cams, mice, keyboards, joysticks, network connections, etc.