MCIGICM FR-4 Copper Clad PCB Laminate Circuit Board, Single Side, 4 x 2.7 inch (10Pcs)

Was a little bit weary compared to the reviews left here, so I'll share my honest experience with these boards. Right out of the box, the surface wasn't that great. Kind of like scuff/grease marks on it, but nothing that would effect the usability of these boards. Just sand off the imperfections with some fine grit sandpaper. I personally didn't notice any severely messed up cuts for the edges of the board, maybe others got a bad batch. I'm sure if I measured it that it wouldn't be perfectly square, but I'm not going to nitpick on that. For the actual etching, especially for the first time, I found these boards to work almost perfectly. I used Staedtler's universal permanent markers to make my traces, and it worked surprisingly well (sharpie works ok but can smear off). Almost all the traces were preserved after etching, and I didn't notice any peeling or have trouble with the thickness of the copper. Other than needing to saw the boards into smaller manageable sizes, these boards were very easy to use. Overall, for the price it's a nice and easy introduction to DIY PCB manufacturing and I will be buying more.

I have never received this set. I returned the first set due to very poor quality.

Good quality

Perfect sizing. They arrived stacked on top of each other so most of them came slightly scratched, not an issue for me personally since I’m using them for large sized traces along with dissolving most of the copper off the board itself. Aside from the light scratches look good and function exactly as expected! Unless you’re planning to make super small tiny traces, I’d recommend them

You get what you pay for--this is a 10-pack of 2.7x4" offcuts from PCB manufacturing, stacked without anything separating them, and put into a thin cardboard box that's scotch-taped shut. They're scratched, gouged occasionally along the edges, stained in places. Will they work? Sure, if your project is fairly simple and you have wide, not-too-complex traces, the surface scratches here and there probably won't affect your functioning. Without putting it under a microscope, none of the scratches look deep enough that they've broken through to the laminate. If you're making something incredibly complex with hair-thin traces and precisely-calculated resistance from component-to-component, well, you probably should spend a little more than 69 cents per board. This is keeping manufacturing waste out of the landfill and getting it to hobbyists that'll use it, so...as my wife said when she married me, "Meh, it'll do."