Treedix Screw Terminal Block Breakout Board Moduleor Compatible with Arduino MEGA-2560

As others have mentioned, this does not have screw terminals, it has a push-to-open type of connecter that works well enough if you use the tool they send with it, but I would have preferred to have screws. The screw type terminals would require less pressure pushing against the board stack. If the stack is not mounted (ie: lose on the bench) it becomes a three-hand proposition to make connections.I did not realize at first that it comes with both stackable headers and regular headers. The stackable headers are the very common ones that have rectangular pins, not square pins. The square pins (which the other headers have) are more reliable, IMHO, so those are the ones I soldered to the board. You won't be stacking any other boards on top of this anyway, the only advantage of the stackable headers are that you can insert wires into them, but then why buy this board if you are going to do that?The ICSP header is included, but is only pass-thru and has no screw terminals associated with them that I can find. So, there is really no point in soldering this header in place if another shield will not be stacked on top of this one.

Great product and great seller communication. If you're good at soldering (like I am) then get this one and save yourself the money you'd spend on a pre-assembled one. It's got a good quality PCB and components, comes with a jumper kit, and you get to decide if you want pass-through or standard header pins (both are inlcluded) - all in a reusable box. The stickers were missing with my kit, but the seller was very quick to make it right; it took 2 weeks to get here from Asia, but that is expected. I'm probably going to order another one soon.

I have a lot of breadboard jumper wires connected to the mega. Sometimes they come off and it gets complicated to even remember where they came fromSo I got this breakout board to use the screw terminals to attach the breadboard jumper wires. But... the screw terminals do not work with the standard jumper wires!I guess I could have realized since they are bundling their own wires. Also Jon's review pointed it out. But it's nowhere in the description.It was fun spending a few hours soldering and gluing the labels to the connectors. But this now goes to the trash can

no screws - they refer to screws but there are no screws. Don't be fooled. This is not what you want if you want a screw connections.