Adafruit Perma-Proto Quarter-Sized Breadboard PCB (3-Pack)

These quarter-sized perma-proto boards from Adafruit function similarly to standard perf-boards in that through-hole parts must be soldered to the board, but the holes are internally connected like on a 210-point breadboard, with four bus lines that each span the length of the board and 15 rows of electrically connected pins. They also feature a labeled silkscreen and mounting holes, which make it easy to transfer your prototype to a permanent circuit board and project box. These boards are sold in packs of three.