Ettus USRP B310 GPIO Connector Pinout

General‑purpose digital input/output connectors, showing 19 GPIO pins and the connector shield.
Table 7. GPIO Connector Pinout
Pin Name Direction Voltage Domain Description
— SHIELD N/A N/A SHIELD
19 GND N/A N/A Ground reference
18 VCC Out +3.3 V External power for GPIO accessories (250 mA maximum)
17 Data[7] In/Out 3.3 V General-purpose digital I/O
16 Data[6] In/Out 3.3 V General-purpose digital I/O
15 Data[5] In/Out 3.3 V General-purpose digital I/O
14 Data[4] In/Out 3.3 V General-purpose digital I/O
13 GND N/A N/A Ground reference
12 Data[3] In/Out 3.3 V General-purpose digital I/O
11 Data[2] In/Out 3.3 V General-purpose digital I/O
10 GND N/A N/A Ground reference
9 Data[1] In/Out 3.3 V General-purpose digital I/O
8 Data[0] In/Out 3.3 V General-purpose digital I/O
7 GND N/A N/A Ground reference
6 GND N/A N/A Ground reference
5 Data[9] In/Out 3.3 V General-purpose digital I/O
4 GND N/A N/A Ground reference
3 GND N/A N/A Ground reference
2 Data[8] In/Out 3.3 V General-purpose digital I/O
1 GND N/A N/A Ground reference
Note The GPIO connector is not intended to drive large loads.