15Pcs PCB Protoboards,YUNGUI 5X7cm 1-2-3 Perf Board Circuit Board Strip for Electronic Project and Electronic Experiment

These protoboards are excellent quality and a great size for small to medium electronic projects. At 5x7cm, they’re large enough to fit multiple components but still compact for breadboard-sized builds. The holes are evenly spaced at 2.54mm pitch, and the copper pads take solder cleanly without lifting. I like that the set includes 15 boards, which makes it easy to work on multiple projects at once or keep spares on hand. The boards are sturdy and don’t flex, and the strip layout makes wiring simple and organized. They’re perfect for moving a design from a breadboard to something more permanent. Great value for anyone doing DIY circuits, Arduino/ESP32 builds, or classroom electronics experiments. Dependable, easy to work with, and plenty in the pack

Lets start with the cons, which should be obvious, but since people are confused: No, these are not plated through hole PCBs. Yes, soldering on them will be different than through hole PCBs since the solder won't wick through. You won't get the mechanical strength you will from plated through holes. But these are cheap, you get what you pay for. That said, these are great for small projects and beginners. Spacing is good so it's hard to bridge. Holes are drilled out well. Layout is good for DIPs. I haven't had any problems with lifting pads, but I wouldn't be surprised if it's hard to desolder since they're not plated holes. So far they're working for me. Just wish we had dimensions for mounting holes.

Very good prototype boards. Good size for my design projects. Happy with purchase.

I am a hobbyist board repair and retro game console modder. I picked these up because they had various trace connections lengths and orientations and I thought it would reduce the amount of jumper wires I would need to solder with other breadboard style prototype boards that are just rows of traces. I see (3) main issues with these boards. I can see these being a huge problem for beginners and for that would not recommend it for beginners or anyone who hasn't soldered in awhile. 1. As others have mentioned the traces do not go all the way through so that somewhat reduces the utility that I gained with other boards, but I worked out a system to help here. I would keep the leads long on some components so I can pass them through then back up into another section. This requires a lot more planning ahead of time though. note: if you do get these, make sure you put the components on the side without the trace so you can solder them, then cut off the extra lead. 2. Again as others have mentioned, the trace quality and mounting is poor and they don't take to heat very well. To counter this I cranked the heat up on my iron to ~800F to get a good solder. The problem with this is that at that temperature, its much easier to burn the board and/or traces and destroy them. For beginners this can be a challenge because this means you need to be good with flux and solder application to quickly get it locked in and not cause damage. 3. I think this was also mentioned too, but the way the solder flows on the trace bars isn't great (which is why I raised temperature), but this also causes problems when trying to keep the solder over one of the holes and not flow to surrounding holes. The first three pics are of me using this board, and the last 2 are me using a breadboard style board. You can see a clear difference in quality of solder joints. Both of these boards are the same circuit with differing design and components.

Good boards. I was surprised how easy it was to fasten via soldering extra components and have them fit... Good spacing.

The description states the pads are gold-plated copper, including the through holes. I will forgive the vias aren't plated through since the description doesn't specifically say this despite alluding to it, but I am finding it very hard to believe the pads are 100% copper much less gold plated. Solder will not flow onto this stuff, I've never had such a hard time getting solder to flow onto pads. I tried two different solders, pre-fluxing, light sanding, all failed to stop solder from being repelled by these "copper" pads. Not for me.

Good for experimenting and building prototypes. I've used these for years. Used to be available from Radio Shack. Very convenient for using IC's

I've used these for so many projects. Placed two orders already and may place another. I needed to drill out the mounting hole a little for 4-40 screws -- no problem. Also enlarged the component lead holes to accommodate captive screw terminal strips. Need to be careful when unsoldering, as copper traces may separate from the board if not careful.

These are great little units on which to mount DIP chips because the two centre lines can be used for power and ground. I always keep a supply on hand.

Bought these to use for adaptable circuit use. The copper layout allows a lot of flexibility of how you can layout a circuit and components. For example the long copper strip makes a great GRD connection point. The board cuts very easy with a 10" bandsaw and I used a part of the board about 1" x 3/4" to make a 'side' circuit for my Raspberry Pico experiments. The little board holds a RESET and BOOTSEL switch. If you find the copper lifts off the board when soldering, you are using too much heat.

The board has a bit of a hard time holding onto parts that have been "tacked" with solder. Almost requiring every pin to be soldered in to have the part hold in. Solder does not flow easily into or through the board.

Excellent Product

The 1, 2 and 3-hole pads helped minimise jumper wires, and the two copper strips facilitated Vcc and ground connections for my 6 IC prototype. The boards I received DID NOT have copper-plated holes as advertised. I won’t buy these again unless I hear from the manufacturer.