NZXT AC-IUSBH-M1 USB Hub Type: USB Standards: USB 2.0 Ports: 3 internal connectors and 2 external connectors 1 x USB 2.0 Header, 1 x Molex Power Input: 5V DC Operating System Supported: Requires a USB 2.0 internal connector Dimensions: 1.42 x 4.13 x 0.96