Ortholinear Keyboard JJ50 Preonic Planck OLKB Vintage MX Black Rare

Purchased this keyboard as a kit from KPrepublic. I soldered in 60 Cherry MX Vintage Blacks, from a NOS Wyse keyboard. This is an extremely smooth switch and arguably better than the current MX Black.
I built this keyboard as a kit, about a year ago. I lightly used it for about 3 months. The board has been cleaned. I used the keycaps for another project. So you will need to supply your own. All keys work flawlessly. The metal enclosure feels extremely hefty and well made. A high quality braided mini-usb cable will be included with purchase.
I have not messed with reprogramming the board at all. I listed the JJ50 PCB features on KPrepublic’s website below
The key at the left bottom of the PCB is FN key(combination key). Normally, it won't active when you test the PCB with the key tester. When you press fn + another key, it will have key-value, Pls pay attention:)
Spec
1\up tp 60 keys
2\Supports offline brush app
3\Fully programma PCB
​4\RGB bottom underglow led
5\Standard ICSP interface
6 \All components of the board have been pre-soldered so the PCB is ready for key switches and LEDs
Thank you for viewing. Feel free to ask me any questions.