https://www.m2mc.eu/l/m2mc-presents-new-version-of-nb-iot-prototyping-kit-for-the-internet-of-things-pg-board/
The PG Board is a unique solution designed for the latest generation of Internet of Things networks, called Narrowband (NB-IoT).
new versionprototyping boardpresentsiotpg
https://www.pi-shop.ch/protocam-rpi-b-2-3-camera-module-prototyping-board
ProtoCam+ - RPi B+/2/3 Camera Module Prototyping Board - ProtoCam+ - RPi B+/2/3 Camera Module Prototyping Board
raspberry picamera modulerpiprototyping
https://www.analog.com/en/resources/evaluation-hardware-and-software/evaluation-boards-kits/ad-fmcadc2-ebz.html
The AD-FMCADC2-EBZ is a data acquisition and signal processing platform that contains a complete signal chain for digitizing wideband RF signals
rapid prototypinganalog devicesadebzboard
https://www.reactivemicro.com/product/apple-ii-prototyping-board-from-glitchworks/
These boards were developed for internal projects and have been used in several Apple II and clone variants. It's new made, high quality protoboard...
apple iiprototyping boardcom