Invac Optical Switch Keyboard

By Xah Lee. Date: . Last updated: .

I can't find info about this keyboard. Any knows?

invac optical switch 20171111 86729 s
invac optical switch 20171111 4032×3024
invac optical switch 20171111 95992 s
invac optical switch 20171111 4032×3024

If you have a question, put $5 at patreon and message me.