Because of the Nano's small form factor, it doesn't have much space to accommodate a jack. There are, however, still three other ways you can power your Nano: via the USB port, VIN pin, and 5V pin.

The board is built around an ATtiny3217 and has almost all of the Nano’s features, like a USB port, reset button, built-in LEDs, 5 V regulator, and preloaded bootloader.

512KB SRAM and 16KB of RTC SRAM Dual-core CPU at 240 MHz clock speed USB-C programming port The Arduino Nano ESP32 is available to order today in the Arduino Store, starting at $18.