USB extension cable compatible with USB 2.0 and 1.1 that feeds the signal on those occasions it is necessary either that the peripheral requires a good signal to work correctly, or because they exceed the maximum allowed distance USB. In addition to a simple cable, you have the electronics necessary to perform this function. This is a 5m cable with type A-Male connector on one end and 2 x A-Female in the other, which also acts as a USB port replicator. Allows you to chain 4 units (4 units x 5 m = 20 m), which can be coupled with additional USB cable 5m (total 25 m from the computer to USB peripherals). It should be borne in mind that each extender consumes 120 mA USB port, which have been adding the amperage of each of the extenders used, plus the USB peripheral's own consumption (the theoretical limit of a USB port is 500 mA). Compatible with Windows and Mac OS.