This is the self build PCB without a Pico 1 included. Download link to UF2 file included.

Caveats: ADB isn't hot-pluggable, connect everything before you power on your Mac.

and maximum current draw is 500mA, and each device must consume 100mA or less.

USB Keyboard in my photos is a CiT KB-738 with low current draw (also works with our Mac Plus keyboard adapter)

I think most mice will be low current draw.

Tested with Mac SE/30, Classic 2 and LC. Not suitable for Powerbook range.

Shipping via Royal Mail, UK (48 hours) & Worldwide (7-14 days).