Sejin SNR8012 80-Key Unencoded Matrix Keyboard
Sejin Electronic part number # SNR8012 has 80 full-sized removable QUERTY keys mounted on 10.5" W X 4.625" H x 0.5"D board with flat I/O mylar ribbon cables which will require soldering. This is typically used in laptop type computers. No documentation, great for project work.