NOYITOTerminal Adapter IO Shield for Nano V3.0 AVR ATMEGA328P-AU Module Board - Pack of 2

Great for small projects that you can hook up quickly. Seem to be well made.

works like a charm! comes with 2 so I ordered a second nano just to use this hah!

This is perfect for firmly securing wires, and it allows easy swap out of the Arduino chip if it fails.

I bought a pair of these thinking that they might be more suitable than breadboards for some of my nano-based projects, and they certainly were. I'm currently playing with WS8211-style addressable LEDs, and using them with a breadboard meant having a fragile setup where things came disconnected easily. The screw terminals make the connections so much more durable, with less space than a half-sized breadboard. Certainly, these aren't the solution when you need to do some circuit building, but, if you're just connecting pins to outboard devices (like LEDs, relays, sensors, etc), these give you a platform you can use as the final implementation of your tinkery/hacky projects. As soon as they arrived and I tried one, I had put them both to work and ordered two more pairs.

After buying this product, making solid connections with an arduino nano has never been easier or more secure. Screw terminals are incredible for prototyping. Absolutely will be buying again!

Great product makes transitioning from a bread board to a project box easy. Only issue is the connectors are a little too small. The openings look larger than they actually are. Putting more than 2 wires in might not work.

This is almost perfect. I am using this with 18awg wires but you should be able to fit 16awg.

Picture not accurate, grounds tied with common ground plane. Would probably work fine for a nano but wont work for an STM32.