Pi-top Accessory Inventor's Kit with Proto+ Prototype Breadboard (USED)
Note: This product is pre-owned or as we call it around here it is USED.
Very hard to find unless you purchase with a Pi-Top Laptop (v3) while having all the included components is nice it's the prototype board that is the real benefit.
The Pi-Top Proto+ cannot be purchased separately and is a superior breakout pcb. IMO it is much better than the Pi-Top Proto board. I have no idea why they won't sell the Proto+ separately.
Anyway, I have an extra Inventor's Kit that I will never be using. If you have any questions, please let me know.