Out of the box, the Jetson Nano Developer Kit is configured to accept power via the Micro-USB connector. You’ll need to power the developer kit with a good quality power supply that can deliver 5V⎓2A at the developer kit’s Micro-USB port. Not every power supply rated at “5V⎓2A” will actually do this. The power supply will need to consistently deliver ≥4.75V to avoid brownout condition. Note that some USB cables can lead to additional voltage droop.
See the Jetson Nano Supported Components List for power supplies that NVIDIA’s validated with the Jetson Nano Developer Kit and that were specifically designed to overcome common problems with USB power supplies:
Recommended Micro-USB Power Supplies
- Adafruit 5V⎓2.5A Switching Power Supply with 20AWG MicroUSB Cable (GEO151UB-6025)
- GeekPi 5V⎓2.5A GeeekPi Power Supply with ON/OFF Switch (ABT025050)
- Pwr+ 5V⎓3.5A Pwr+ AC Adapter TBAM3-UL (PWR-TA05035N)
- Raspberry Pi 5.1V⎓2.5A Raspberry Pi Universal Power Supply (DSA-13PFC-05 FCA 051250)
If you want to run stressful workloads in the (default) 10W power mode,you should instead use a DC barrel jack power supply (with 5.5mm OD / 2.1mm ID / 9.5mm length, center pin positive) that can supply up to 5V⎓4A. See Adafruit’s 5V⎓4A switching power supply (GEO241DA-0540) and the Power Guide section of the Jetson Nano Developer Kit User Guide for more details. To enable use of the DC barrel jack power supply, you will need to fit a jumper to J48 on the Jetson Nano Developer Kit baseboard.
The devkit may also be powered from pins 2+4 (pin 6+9 GND) of the J48 Expansion Header - up to up to 5V⎓3A per pin (5V⎓6A total).
The Jetson Nano Developer Kit includes a passive heatsink, to which a user-supplied fan can be mounted (for example Noctua NF-A4x20 5V PWM). When operating with passive cooling, depending upon the workload the heatsink may get hot to the touch and direct contact should be avoided.