Full Pinout for Dell Axim X30 PDA. Not sure about X3.
| Pin Name | Pin Number | Description |
| 1 | Gnd | |
| 2 | Gnd | |
| 3 | Unknown | |
| 4 | Unknown | |
| 5 | ID0 | Open |
| 6 | ID1 | Connect to Gnd for GPS |
| 7 | +DC | |
| 8 | +DC | |
| 9 | +DC | |
| 10 | +DC | |
| 11 | TxD | Out |
| 12 | Gnd | |
| 13 | RxD | In |
| 14 | RTS | |
| 15 | Gnd | |
| 16 | CTS | |
| 17 | DTR | |
| 18 | 3.3V | Out (perhaps Vref for something) |
| 19 | DSR | |
| 20 | USB Power | |
| 21 | USB D- | |
| 22 | USB D+ | |
| 23 | En | |
| 24 | Unknown | |
| 25 | Unknown | |
| 26 | Gnd |
