CLUB3D USB 3.0 Hub 4-Port with Power Adapter. Connectivity technology: Docking, Host interface: USB 3.2 Gen 1 (3.1 Gen 1) Type-A, USB connector type: USB Type-A. Product colour: Black, Silver, Data transfer rate: 5 Gbit/s, Certification: FCC, CE, ROHS. Power source type: AC, USB, Output voltage: 5 V, Output current: 4 A. Windows operating systems supported: Windows 10. Sustainability certificates: RoHS