The USB Travel Kit offers laptop owners the best solution for connecting all external USB peripherals. It provides a 4 port USB hub, USB mouse, USB a male to USB a female cable (up to 2.3F), earphone cable & microphone (up to 3F), RJ45 to RJ45 cable (up to 3.2F), USB male to mini 5 pin male cable(up to 2.8F) cable. and USB mouse hub has a retractable USB cable to extend the distance between the device and your laptop. With the USB travel kit, you will never be stranded to utilize printers, external drives, digital cameras, digital camcorders, card readers, or any other USB driven devices on the go. You will love the USB mouse hub.