Review on ELEGOO Nano V3.0 Board without USB Cable, CH340/ATmega+328P, Arduino Nano Compatible (Pack of 3) by Rhonda Babson

I ordered two sets (six nanos). Everything checked perfectly. For MAC, use the web address on the order page and download the NANO files. The serial port driver is included in this package. Otherwise it will not be recognized by your Arduino IDE. Just download, unzip and run the process. Reboot and you now have a port to work with in the IDE. Select the Arduino Nano and make sure the AT mega328P processor is selected so you can successfully communicate with the bootloader. The download package has all the instructions, it's very simple and as I said it works on my MAC. I tested all six like this: plug in and make sure l13 is blinking (comes with "Blink" program preinstalled). of your choice and verify that it works (the program should enable l13 and communicate with the serial console), press the reset button to ensure the Nano's reset button works, reload Blink and checkBoom - you have an amazing $4.26 Arduino ready to do awesome things with. .Again, all mine are tested perfectly. You will need to solder the headers and space is limited so be careful. Not the best platform for prototyping, but once you understand what you want your Arduino to do, these are my top Arduino "deployment" platforms. Economical (they steal) and saves a lot of space. I strongly recommend a hassle-free and very inexpensive Arduino deployment. UPDATE: I ordered six more Nanos, did the same test as above and tested everything great. Stock up while it's cheap. The quality stability of this particular product is excellent. I've had a nano flash non-stop for two weeks. I'm just checking to see if he's dying, but he just keeps going and going and going.