Review on 🔌 REXQualis Board: Arduino UNO R3 ATmega328P ATMEGA16U2 with USB Cable - Ideal for Arduino IDE Projects by Roderick Reynolds

This is a good quality UNO compatible board that has one nice feature that sets it apart from most others: the connectors are on the board marked on the outside, making it easy to determine the function of each contact without looking at the board itself. The labels come in handy as the circuit board is often obscured by other wires/boards you may have attached. However, there is a small error in the labeling where almost all digital pins are labeled PWM. Of course, only pins 3, 5, 6, 9, 10, 11 have the PWM function, so only these should be marked. It's easy enough to cover up mistakes with a black marker, but it's worth mentioning to avoid confusion. Aside from the labels, this board is the same as all other UNO compatible boards. The soldering quality is decent, although the pins on my board weren't mounted quite straight. Slightly bent connectors can make it difficult to connect shields to this board, but a bit of wiggling is usually enough to get the boards to match. All in all, this is a great UNO board. The pin labels are a useful bonus when you take a minute to correct a mislabeled PWM. Four stars.