2 layers110 × 82.5 mm

Octoserial
superna9999/octoserial
USB High-Speed to 8x RS-232 TTL level with the CH348Q IC.
39 parts5Apache-2.0
Boards in 3 GitHub repositories, designed in KiCad, that use the CH348Q by WCH (Nanjing Qinheng Microelectronics) (3.3V 360uA 55mA 6Mbps 8 USB 2.0 USB to UART LQFP-48(7x7) USB Converters ROHS). See how each wires it, with its parts, size, README and files; the CH348Q’s symbol, footprint and pinout are on its own page.

superna9999/octoserial
USB High-Speed to 8x RS-232 TTL level with the CH348Q IC.

LuizFernandoOliveira/Conversor-USB-para-8-UARTs
This work is licensed under a [Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License][cc-by-nc-nd].

LuizFernandoOliveira/Conversor-USB-para-RS232-e-RS485
This work is licensed under a [Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License][cc-by-nc-nd].