4 open source boards using the FUSB303BTMX
Real designs built with the FUSB303BTMX, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
ESP32Cryobelt
michael201110
90 × 50 mm92 parts4LNo license1
RP2040/RP2350GMM-7550 USB3 Adapter
GMM-7550
75 × 50 mm198 parts4LNo license36
STM32BB3plus test mainboard
eez-open
180.5 × 176 mm262 parts4LTAPR-OHL-1.012
STM32BB3plus USB hub test
144.5 × 103 mm223 parts4LTAPR-OHL-1.012
The FUSB303BTMX in open source designs
The gallery holds 4 open source boards using the FUSB303BTMX from 3 GitHub repositories; a typical one measures about 117.3 × 76.5 mm and carries around 211 components.
100% use four copper layers or more, and 50% carry an open source license.
The most starred is GMM-7550 USB3 Adapter by GMM-7550.
Microcontrollers on boards using the FUSB303BTMX
What boards using the FUSB303BTMX are built for
FUSB303BTMX: common questions
Where can I find a FUSB303BTMX reference design?
Each of the 4 boards on this page is a real design using the FUSB303BTMX. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the FUSB303BTMX use?
Most are built on STM32 (2), ESP32 (1) and RP2040/RP2350 (1).
How big is a typical board using the FUSB303BTMX?
The median is 117.3 × 76.5 mm, and 0% are two-layer designs.
What is the most popular open source board using the FUSB303BTMX?
By GitHub stars, GMM-7550 USB3 Adapter by GMM-7550, with 36 stars.
Can I simulate one of these boards using the FUSB303BTMX before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.