# BPI-R2 PCIE interface

Banana Pi support Mini PCIE interface ,so you can add many other module on it. so you can do many other function on it, such as AC AP ,and VOIP fxs/fxo E1/T1 and so on.

**Mini PCIe specification:**

The slot J2 is the PCIe interface. The pin definitions of this connector are shown as below.

| DSI Pin Name | Default Function |
| ------------ | ---------------- |
| J2-P01       | PCIE0\_WAKE      |
| J2-P02       | 3.3V             |
| J2-P03       | NC               |
| J2-P04       | GND              |
| J2-P05       | NC               |
| J2-P06       | NC               |
| J2-P07       | PCIE0\_CLKREQ    |
| J2-P08       | NC               |
| J2-P09       | GND              |
| J2-P10       | NC               |
| J2-P11       | PCIE\_CK\_N0     |
| J2-P12       | NC               |
| J2-P13       | PCIE\_CK\_P0     |
| J2-P14       | NC               |
| J2-P15       | GND              |
| J2-P16       | NC               |
| J2-P17       | NC               |
| J2-P18       | GND              |
| J2-P19       | NC               |
| J2-P20       | NC               |
| J2-P21       | GND              |
| J2-P22       | PERST            |
| J2-P23       | PCIE\_RXN0       |
| J2-P24       | 3.3V             |
| J2-P25       | PCIE\_RXP0       |
| J2-P26       | GND              |
| J2-P27       | GND              |
| J2-P28       | NC               |
| J2-P29       | GND              |
| J2-P30       | NC               |
| J2-P31       | PCIE\_TX\_N0     |
| J2-P32       | NC               |
| J2-P33       | PCIE\_TX\_P0     |
| J2-P34       | GND              |
| J2-P35       | GND              |
| J2-P36       | NC               |
| J2-P37       | GND              |
| J2-P38       | NC               |
| J2-P39       | 3.3V             |
| J2-P40       | GND              |
| J2-P41       | 3.3V             |
| J2-P42       | NC               |
| J2-P43       | GND              |
| J2-P44       | NC               |
| J2-P45       | NC               |
| J2-P46       | NC               |
| J2-P47       | 5V               |
| J2-P48       | NC               |
| J2-P49       | 5V               |
| J2-P50       | GND              |
| J2-P51       | NC               |
| J2-P52       | 3.3V             |

MT7623N chip support 3 pcie interface. BPI-R2 just have one standard pcie interface ,one for sata, one for USB 3.0

![](https://2026254418-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2HWtQhonJaM_KJIa7S%2F-M2HWugLnEYPO4HWj-RM%2F-M2HXJ3vnNbkyPQ9vYdg%2Fusb-pcie.JPG?generation=1584080202367138\&alt=media)

we can use PCIE 2 PIN define port， when you use this PIN , USB 3.0 will not work .

Note : it is standard PCIE interface ,Not support some USB 4G dongle via this interface.
