This USB extender extends the connected signal up to 50m by ethernet cable cat5e/6/7.With 4 USB2.0 ports, this is also a USB hub while connecting long-distance signals. Supports up to 480Mbps, easy to access USB 2.0 transmission equipment. Compatible with multiple operating systems: for , for OS, for Unix, for Android, for Linux etc. Support PC, webcam, printer, scanner, USB Disk, keyboard, mouse and more. Plug and play, no additional driver is needed, it be installed automatically when connected. USB Extender By Ethernet:Ideal for use with USB cameras, printers, web cams, keyboard/mouse extensions and more USB devices. Allows you to connect your USB devices to your computer at a distance of up to 50m/165ft Connect power to the transmitter and it work (the receiver no need extra power supply). Uses standard cat5/cat5e/cat6. Signal mode: USB ( 5m ) --- CAT6 (Less than 50m ) --- USB ( 5m ) . INPUT: Standards:USB2.0 Power supply:5V/1A OUTPUT: Standards:USB2.0(4 Hub) Ethernet: Interface:RJ45 Recommended max distance: CAT6---50m/164ft; CAT5E---40m/130ft; CAT5-30m/100ft Voltage: AC220V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour:Black Material:iron Package Contents: 1 x USB transmitter 1 x USB receiver 1 x USB-B to USB-A 1 adapter(Due to different product batches, the appearance , which does not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.