UCTRONICS Male to Female GPIO Ribbon Cable 40pin 8inch Breadboard Jumper Wires for Connection Raspberry Pi 5 3 2 Model B B+ w/ 3.5/5 inch TFT Touch Screen LCD Display

It's standard size length gets the job done but I would of loved if it had been a bit longer. Still great product I would buy again

Good quality and is as described. I bought for doing self learning.

This review is for UCTRONICS Male to Female GPIO Ribbon Cable 40pin. There isn't a lot to say about this cable, and that is actually a good thing. Everything was done right on the cable that I received. It has the correct pin connections on both connectors to extend a Raspberry Pi GPIO hat outside the case. The strain relief on the cables is decent and the plastic connectors are good. Really, there is no reason to have a color coded cable, but it does let you verify that the cable is wired correctly. It is kind of nice to look at instead of another dull grey ribbon cable. I'm using this cable with a GPIO breakout board HAT that has LEDs, so it was very easy to tell that the cable was wired correctly. The length is enough to get outside the case without a lot of extra to flop around or introduce noise on the signals. I won't put the top on my case, but this cable will fit nicely through a small slot that is open on at least one side. The connectors obviously won't fit through a slot the size of the ribbon cable unless it is at a seam between the top and bottom.

I like the extra connector on the ribbon cable. This allows me to connect a LCD to the ribbon cable since it was already terminated in a block. The circuit board's printing is easy to read despite it being narrower than another extension that I have. The breadboard's holes seem a little loose but so far haven't caused a problem. Pushing the extension board's pins into the breadboard caused some of the metal bands on the bottom to push out. Pushing them back in was easy enough. The jumper wires appear to be well constructed and so far the pins on each end have not separated from the wire. One caveat I found with the extension board is that if you install it where the printing on the board matches the direction of the printing on the breadboard the positive and ground rails on the sides of the breadboard are reversed.

Cut it in half and use them to jump from a rPi daughter board to a mother board for a complete system.

Haven't tried any others to compare to but I needed a breadboard, a ribbon cable for my pi, and a way to plug the ribbon cable into the breadboard, so this was exactly what I needed and it is working great. The jumper cables are male-male, you might also want to get some male-female ones if you want to go from the breadboard to another PCB with male pins on it.

While the kit had all the components I needed, it was defective. Fortunately, I tested the pinouts before I connected to my Raspberry Pi. In the 40 pin cable, 20 pins were shorted together because the cable was not straight when one of the piercing connectors was attached at the factory. Unfortunately, the shorts included 5 volts to ground and many other pins. Basically pin 1 was shorted to pin 2, pin 2 shorted to pin 3 repeating through pin 20. I had to remove the connector, cut away the pierced section, and then install the connector again on the cable correctly. Once I fixed it, everything worked as expected.

Found these for a costume I was building... I believe these would work great if I ever build a Raspberry Pie PC...but they were perfect for what I intended them to use on. Thanks!