Review on 5pcs Nano V3.0 AVR Atmega328P-AU Adapter with Nano Terminal Adapter Shield Expansion Board for Arduino Nano V3.0 AVR Atmega328P-AU Module by George Miller

The quality of this PCB is absolutely unacceptable. Even the slightest pressure on the terminal screws separates the circuit on the underside of the feed-through terminals from the circuit board. These gaps are very difficult to detect, resulting in strange behavior on the Nano board (sometimes DI/O works, sometimes not). With all the jumper wires I had to solder between the 0.1" pin headers and terminal blocks, I'd be much better off just using pre-made PCB breadboards. I won't buy them again.