HUB USB 3.0 - 4 PORTS : 845.00 DA HUB USB 3.0 -7 PORTS : 975.00 DA -With 4 USB 3.0 port with super speed 5 Gbps -With LED indication -With slim size -With fuse to protect all devices -With DC5V power jack -Compliant with USB revision 2.0 SPECIFICATION : -USB connectors : A-type downstream X4, B-typew upstreamX1 -Driver support : Windows 2K/XP/ Vista/ Win7.Linuk. MAC os 10.0+ -LED : blue (power) -Maximum data transfer rate : USB3.0 : 5Gbps -Power : DC5V -Dimensions 4 PORTS : 105 (W) X 33 (D) X 22mm (H) -Dimensions 7 PORTS : 150 (W) X 37 (D) X 25mm (H) -Regulatory certifications : CE.FCC.ROHS.KCC