5 PCS of Artag's AR488 board for Arduino Nano.
Artag's repository https://github.com/artgodwin/AR488-32u4-PCB
AR488 source https://github.com/Twilight-Logic/AR488
More details in https://www.eevblog.com/forum/projects/ar488-arduino-based-gpib-adapter/
Pictures in post https://www.eevblog.com/forum/projects/ar488-arduino-based-gpib-adapter/msg3866630/#msg3866630
ZIP file can be directly uploaded to JLCPCB