SABRENT 4-Port High Performance USB 2.0 Hub (USB-AHUB) Instantly Add Four USB 2.0 Ports to Any Compatible Device. Easy Setup, Plug-n-Play, Hot Swappable, Hot Pluggable Gain Four Downstream Ports Which Offer High-Speed (480Mbps), Full-Speed (12Mbps), And Low-Speed (1.5Mbps) Elegant Design Has Been Configured To Be As Thin As Possible Making Sure Not To Take Up Precious Work Space or As You Travel Backwards Compatible With 1.1 Devices and Hosts