Tonsee Black USB 2.0 Hi-Speed 4-Port Splitter Hub Adapter for PC Computer Notebook 4 Port USB Hub Accessory ONLY; USB flash drive not included Allows simultaneous operation of up to four separate devices all attached to a single USB port Perfect for connecting USB 1.1 or 2.0 peripherals such as USB mice, USB Portable Hard Drives, USB CD-R/RW or DVD-ROM drives and USB 1.1 hubs Great for laptops with hard to reach USB ports