ThinkCentre Tiny III Expansion Box 4XH0K93943 ThinkCentre Tiny III Expansion Box can increase the number of I/O ports for your Tiny 3 systems. And this compact I/O box is easy to connect – simply plug a USB connector into your Tiny systems. This I/O expansion box includes the following ports: 2x USB3.0 Type A Port4x USB2.0 Type A Port1x Com port1x 90 W ThinkCentre AC adapter Specifications: Height (US) 0.88in Width (US) 7.15in Depth (US) 7.17in Weight (US) 0.71 lbs Height 22.3mm Width 181.5mm Depth 182mm Weight 0.32Kg Supported Operating Systems OS Independent Warranty Types 1 Year - CRU Warranty Period One Year