makes sense, i think usb as a whole is a pretty durable interface
id imagine that its mostly an issue when optimizing speed for drives or when you have the 3.3 superspeed
definetely for thunderbolt because it exposes pcie, etc
I consulted NextPCB engineers directly on which male type-c configuration they would be happy with. They told me that TYPEC-950-ARP24 is easier to mount with more clearance that their machines are capable of achieving. I will modify the base expansion design accordingly and share it for all to use, so people can get expansion cards produced with simpler machines.
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I have revised the expansion card template to accomodate TYPEC-950-ARP24 connector. Here is the 0.2 clearance/0.4 panel V-CUT friendly version:
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Ye gods I hope this works as expected 
I’ve got one of these: Pimoroni Tiny 2350 and tried rigging a male-male usb-c cable and it’s just slightly too big to fit into an expansion case.
My particular usecase is to put a tac switches on the case so when I press them they do things like lock screen rotation 
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Is it just me or does the left usb-c connector look crooked?
Oh its just that they haven’t soldered the back side of it yet. This was actually a one side PCBA order to reduce costs but TYPE-C of course require double side so they will just solder it with no additional costs.
I just received them today, and MY DESIGN WORKS! I can’t find words to describe my joy! It just works! (Doesn’t work with DC-ROMA RISC-V Mainboard yet which is only Framework pc I have due to cdc_acm module missing in the kernel. We are working on it with DeepComputing team.)
I just soldered male headers and all pins seem to work! I will test ADC and SPI/UART/I2C soon.
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We have conducted tests with DC-ROMA RISC-V Mainboard and it works after unminimizing the distro and recompiling the custom Linux kernel with cdc_acm included as module! Legendary @XenoCow known for his snack drawer designed us a 3d case that just fits perfectly. Thank you Xeno! I love this community and open hardware community in general!
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Possibly the most RISC-V cores to ever be in one laptop?
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For now that seems to be the case sir… until I possibly design another expansion card with multi core RV64 based SOPGHO SoCs or FPGA running our own cores.
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Or plug in four, one in each bay! That’d give you 16 RISC-V cores 
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Pals in SemiTO-V Software Task Force have developed a library named “MCL” (Micropython Compatibility Layer) that allows you to write Micropython code targeting MCUs inside PC Python (CPython), as if the PC itself has GPIO!
I LOVE Framework and whole open hardware movement!
Following is a demo with the card connected to Framework Laptop 13 with DC-ROMA RISC-V Mainboard I by DeepComputing inside:
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Very neat! I’ll have to test this out later…
It might be useful to add a description about how this is different than running something like Thonny directly, and interacting with the module that way.
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Visitors in Maker Faire Rome 2025 liked the card! There were a considerable amount of Framework and RISC-V enthusiasts, but most of the folks learned about both at our booth. Here are some photos:
Note: All photos are CC BY-SA 4.0 so feel free to use them!
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This looks amazing! I can see myself using this quite a bit. Do you know if/when the PCB will be available for purchase?
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Hey, thank you! Unfortunately I can’t sell it due to it being a student team project. But I may make a similar expansion card myself under a brand and sell it in the near future. I will let y’all know. 
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awwww, I will definitly be interested that expansion card if/when it releases
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Oops, I posted a message in the wrong thread (too many tabs open today lol), but I got mine to light the LED using the led.py example:
What kind of headers are recommended for easier plug/unplug using header pins? Just a 2x10 pin header, with the legs folded down towards the PCB?
Right now I just have leads soldered to GND and GPIO 10.
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Hi Jeff, I soldered 2x10 header myself but to my ignorance its loose as the PCB is 0.8mm, not thick enough like other boards where its implemented. So its kind of a botched job where I bent the headers with soldering iron which kinda melted the plastic for that to happen:
That being said you can get 2 angled 1x10 pin headers on each side, like “10-pin SMD pin header, angled, pitch 2.54” below, which shouldn’t have any issue:
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