Sandberg USB (Universal Serial Bus) Hub enables you to attach more USB (Universal Serial Bus) peripherals to your computer. The hub features built-in overload protection of your computer's USB (Universal Serial Bus) ports & the hub's ports from peripherals which overload them. Product Features Interface standard: USB (Universal Serial Bus) 2.0 USB (Universal Serial Bus) 2.0, USB (Universal Serial Bus) 1.1 & USB (Universal Serial Bus) 1.0 compliant Supports high-speed (480 Mbit/s), full-speed (12 Mbit/s) & low-speed (1.5 Mbit/s) transfer rates USB (Universal Serial Bus) connectors: 4 USB (Universal Serial Bus) A-female & 1 mini B-female Built-in overload protection Chains up to 127 USB (Universal Serial Bus) devices