UNIROI Breadboard Kit with Arduino Raspberry Pi Breadboard Holder, 14 in 1 RAB Holder Kit for Arduino UNO R3, Arduino Mega 2560, Raspberry Pi 3B+, 3B, 2B, 1B+ Zero W, and Breadboard (RAB Holder Kit)

This tray is designed for a fairly specific purpose and I think it meets that need well. It is nicely finished. I think it's injection molded, and it has no rough finishes or ugly molding marks. It's size seems to be properly matched to the boards that mount on it. The plastic seems fairly dense and not fragile.You can screw boards down or just leave them floating (probably holding down is better to avoid something being jarred around and shorting out some component or connection.The unit comes with a nice assortment of screws, washers and standoffs for mounting boards to the tray and even a small phillips screwdriver to match.The breadboard unit is nicely done and solidly built. It has the "standard" 0.1" square holes used by most of these DIY kit designers. According to it's spec it accepts 20-29 AWG (0.3-0.8mm dia) wire. It conveniently has a peel-off backing for "sticky mounting" it to the compartment area if you wish, but it's pretty hefty and stays put on its own.The ribbon cables supplied may be easily stripped apart or left as a ribbon. They fit into the breadboard holes beautifully for solid connections.There is a nice little assortment of LED's and they plug nicely into the breadboard holes.The unit also comes with a strip of resistors for pull-ups or current limiting. Unfortunately their leads are notably smaller than the breadboard holes. This means you're going to have to "silver" the ends with solder or crimp them up a bit to get good connections for them into the board circuits.The unit ships in a cardboard box that is sturdy and works fine to keep the elements together while not in use.I this this is a good value, well designed and nicely supplemented.I'd readily recommend this to others wishing to learn and develop their Pi-skills.

Thank you for a great product. I do have a few improvements that could be made in future revisions though:1) Rubber feet - There are no rubber feet on the bottom and the plastic is very slippery and slides all over the place. Luckily I had a spare set to use, but it would be nice to see them included in the future.2) Short jumper cables - The jumper cables are good, but it would be nice to have some red and black wires. I had none in the short wires and I like to use those for the positive and negative.3) (this is minor) The resistors included are not really useful. Maybe replace those with the rubber feet?Overall I'm happy with the product as is. I haven't had time to test the breadboard, but it looks pretty standard. I'll update should I find any issues. Thank you.

Vraiment très utile, bien fait. C'est la 1ere planche de travail que je vois de ce genre et j'en suis ravis. Autant pour le débutant que l'amateur. Cette planche de travail simplifie beaucoup la manipulation. Les câbles, résistances et LED en extra viennent ajouter un rapport qualité/prix extrêmement bon.La seule chose qui pourrait donner un 6/5 serait d'incorporer un breadboard avec alimentation 3.3/5VDC externe avec un câble d'alimentation en Y pour alimenter RaspberryPI ou Arduino également... bien évidemment avoir ce supplément avec un prix en conséquence.

love this set i am grabbing another one for my son. this was really just to get the cables and bread board, but i seen a deal on this and checked it out. love it so much i going to grab another one for my son. so worth it. very handy makes working much easy

Fit and finish is excellent. Had one threaded collar with a little bit of molding plastic in the threads, after running a longer bolt through works fine. Take note this unit has mounting posts for RasPi 1-3 AND Zero as well as UNO and Mega. Keeps your wires from pulling out, makes it easy to "park" a project to work on later and protects from scratching your desk with pins on underside of boards. The extra breadboard, jumpers etc practically free in this package.