DORHEA 10PCS 0.91'' 12832 IIC I2C OLED Display Module 0.91inch I2C 128x32 SSD1306 LCD Display Module Blue I2C OLED Screen Driver DC 3.3V/5V with 4 Pin Headers

I use these in all my keyboards I build for customers. Not one has failed me yet. -KeyboardHoarders

They work. These have better soldering and components than similar displays from AliExpress. In the pic the right one is this while left one is a cheaper one from AliExpress. The cheaper ones die soon hehe

One of the two display units didn't work out of the box.

I tested these using 3.3 volts, as I ran across an article that some may not be properly setup for 5V. I also paid particular attention to the polarity, as I read the pins can change from one designer to the next. Both units fired up at address 0x3c and displayed the full Adafruit display test. Nice little unit, really. I hope your luck is as good as mine was.

They are cheap and fullfill the purpose I got them

I made up a socket for inserting these OLED's into my Arduino Nano project bard before soldering them into the PCB. Two out of the ten pieces were dead. Non-responsive. The other eight pieces were OK.

The connection cable is weak and was snapped before I ever got a chance to use it.

One display out of ten was dead on arrival (just a few pixels working). Not surprising, as the 4-pin header was in the same ESD bag as each display, and in more than half, the header was wedged between the PCB and the display. I guess the only surprise was that only 1 was DOA.

Ordered 10 of them and they all work! Looks like a different blue compared to the image preview but still blue.