2
How does it look like? Please see the picture below:
1) Micro USB port for external power supply
2) XH2.54 connector for external power supply
3) Orange LED as power indicator
4) Upstream micro USB port (USB Input)
5) Pogo pin holders for VCC, D-, D+ and GND
6) Downstream (Output) USB port 1
7) White LED as activity indicator for USB port 1
8) White LED as activity indicator for USB port 2
9) Downstream (Output) USB port 2
10) Downstream (Output) USB port 3
11) White LED as activity indicator for USB port 3
12) White LED as activity indicator for USB port 4
13) Downstream (Output) USB port 4