Trust 420A 4 PORT USB2 HUB. Data transfer rate: 480 Mbit/s. Interface: USB 2.0, Installed ports: 4 port USB 2.0, Cabling technology: Hot swappable, connect and remove peripherals any time. Minimum system requirements: Computer with USB support (USB 2.0 preferred) Windows 98SE/ME/2000/XP or Mac OS 9.x/10.x , Compatible operating systems: Suitable for Macintosh and Windows (Plug & Play)