Adafruit took the basic layout of a half-sized breadboard (the PCB has 15 rows) and turned that into a beautiful PCB. The top side has a white silkscreen, and the same markings you're familiar with, to make transferring components easy. The bottom has the 5-hole pad design that matches a classic breadboard, with 4 power bus lines on the sides, and no mask so you can easily cut traces when necessary. 1.2mm diameter drill holes are used so even parts with big leads will fit. All holes are thru-plated for strength - these wont peel off with rework. The finish is a gold plate - you won't get oxidation like with bare copper perf! There are also tons of mounting holes so you can attach the PCB to your project box.
- 15 rows of double 5-hole rows
- 4 power rails with positive/negative markings
- 44mm x 55mm, 1.6mm thick FR4
- 1.2mm drill holes