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UART adapter for Framework Laptop

UART Expansion Card

Sold by i2c Labs


No tax for United States [change]
This store is temporarely paused. Store is closing down, moving to my own store at which will be shortly released.

USB-C to UART adapter

This expansion card utilizes the CH340C as the main component, has a switchable voltage and logic level between 3.3V and 5V via the jumper included, this has one pin header to be used with the jumper and a 6 position pin socket that has GND, CTS, VCC, TX, RX, DTR broken out to the socket.

This expansion card will include:

  • Assembled expansion card with a 3D printed case
  • Two jumpers or more
  • USB-C Dust Cover

**These will be bought to order so they may take upwards of 14 days to ship

Links to code and documentation

Design Files (

Schematics (

Bom (

Certified Open Source Hardware - OSHW AU000011

Product HS Code: 85437090

Shipping policy

All orders will be shipped via whatever method you choose, if you would like to use an express service, please contact me via the Message Seller button, most parcels will be packed in a outer cardboard box with honeycomb wrap internally. If you have any questions, do not hesitate to contact me. Orders will be shipped ASAP, but do note that parcels will not be picked up on weekends. If you would like to use a service that is not listed or if you do not have any shipping methods displayed, please contact me and I will sort it out.

The seller

i2c Labs

Epping, NSW, Australia
37 orders since Jul 3, 2022
Expansion card designer and seller for the Framework Laptop, Patrons get discounts and early access to products.