Pin # Action 1 +5 V USB 2 - Data USB (slave) 3 + Data USB (slave) 4 GND USB 5 +5V (VDD, power out for USB Host) 6 - Data USB (Host) 7 ?? Don't know 8 + Data USB (Host) 9 ” 10 ” 11 ” 12 ” 13 ” 14 ” 15 ?? Video ?? - Don't know 16 GND USB 17 ?? Don't know 18 GND USB 19 +5 V (VCC, system power to e740) 20 ” 21 ” 22 ” 23 GND (system power to the e740) 24 ” 25 ” 26 ”