| Pin | Signal | Description |
| 1 | USB+ | Short to pins 35-40 to make USB charge cable |
| 2 | USB DATA- | |
| 3 | USB DATA+ | |
| 4 | USB- | Ground |
| 5 | + for USB HOST | |
| 6 | USB HOST DATA- | |
| 7 | USB HOST DATA+ | |
| 8 | Short to pin 16 with 4 kOm resistor to enable usb host | |
| 9-15 | may be VGA? | |
| 17,19,24 | GND | |
| 20 | RI | |
| 21 | CTS | |
| 22 | RTS | |
| 23 | DSR | |
| 25 | DTR | |
| 26 | TXD | |
| 27 | RXD | |
| 28-33 | GND | |
| 35-40 | + |

