High Quality 4 Port USB Multi HUB Splitter USB Expansion Desktop PC Laptop Adapter (Black) Includes 1x Superior Quality High Speed 4 Port USB Multi HUB Splitter USB Expansion Desktop PC Laptop Adapter in Black. Allows the use of up to four separate devices all attached to a single USB port. Ideal for use with laptops, tablets, and other devices with a limited number of available USB ports. Used for connecting peripherals such as USB mice, USB Portable Hard Drives, USB CD-R/RW or DVD-ROM drives and USB 1.1 hubs. Highly portable and convenient for use on the road, at home or in the office. Best accessory for PC or laptop computers. Supports data transfer. With safeguard feature against overcurrent and short circuit. Plug and Play enabled, no need to install drivers.