D-Link Network DUB-1340 SuperSpeed 4Port USB3.0 Hub Switch

INTERFACE4 downstream USB Type A (female) ports 1 upstream USB Type Micro-B (female) portSTANDARDSUSB specification version 3.0 USB specification version 2.0 USB specification version 1.1 1 USB specification version 1.0 OHCI (Open Host Controller Interface) EHCI (Enhanced Host Controller Interface)DATA RATESSuperSpeed: 4.8 Gbps Hi-Speed: 480 Mbps Full Speed: 12 Mbps Low Speed: 1.5 MbpsCONNECTIVITYUp to 127 devices by cascading multiple hubsSYSTEM REQUIREMENTSAvailable USB portItem Dimension (L"xW"xH") 6.14 x 2.95 x 7.79Weight 0.88Warranty 1 Year Limited