The Breadboard Card (also called the MCU Dev Card) is a Tool Card from HW Media Lab LLC that carries a Seeed Studio XIAO module in a Framework Expansion Card form factor. Designed to work with the DockFrame modular USB-C hub or standalone via USB-C, it provides a development platform with breadboard-friendly 2.54 mm headers and a downstream USB-C port for prototyping.
The RP2040 Expansion Card is a community-designed expansion card integrating a Raspberry Pi RP2040 microcontroller into a Framework expansion card form factor. Designed by Josh Cook (jyancat) of i2cLabs, it provides a programmable MCU with breakout GPIO, usable as a development board or embedded controller accessible directly from the laptop.
The RP2350 20-pin GPIO Expansion Card is an open-source expansion card integrating a Raspberry Pi RP2350A microcontroller into a Framework expansion card, exposing 20 GPIO pins accessible from the laptop. Designed by Tan Siret Akıncı (tansiret) and jerrymk, it was presented at Maker Faire Rome 2025 and certified by OSHWA (UID IT000024).