Reddit mentions of SUNKEE 100pcs 1p to 1p Female to Female Jumper Wire Dupont Cable 20cm

At a minimum, you'll need a Teensy 2.0 (if you can't solder, get the one with the pins), female jumper wires, and a mini-USB cable.

To connect the Teensy to your keyboard, you can either get a connector that'll attach to the existing cable, or you can remove the cable and connect the Teensy directly to the keyboard's controller. Since it's easier, I would recommend the latter.

On the controller, the existing cable should be connected to something like this. The image is from my normal-sized Model M, but it should be similar in your 122. You might have extra pins, but you can use where the original cable is connected as a guide. Unplug the existing cable and plug in the teensy according to this diagram using the jumper wire. The end result will look something like this, except my teensy didn't have pins so I had to solder. The one with pins you can just plug in the wires.

Then, plug the teensy into your computer using the USB cable. Included in the zip file for Soarers is a folder labled firmware, with a bunch of .hex files. Using this loader, flash the atmega32u4 file. The program will give you instructions on how to do this, it's as simple as pressing a button on the teensy then pressing a button in the program.

That should be enough to get the keyboard running. I'll leave it to you to figure out how to secure the teensy so it doesn't short against the backplate, as well as to figure out key remapping.

https://www.amazon.com/SUNKEE-100pcs-female-jumper-Dupont/dp/B00AYCON8Y

Yes, you need a MOSFET board. There are a ton of them out there. The Fan Extender board for RAMPs will work, but this one is a little easier to hook up:
http://www.amazon.com/IRF520-Button-MOSFET-Arduino-Raspberry/dp/B00W8TXEAE/ref=sr_1_2?ie=UTF8&qid=1450228860&sr=8-2&keywords=arduino+mosfet

Optionally, you can use these jumpers for connecting the signal lines (just peel off the 3 you need):
http://www.amazon.com/sunkee-100pcs-female-Dupont-Arduino/dp/B00AYCON8Y/ref=sr_1_1?ie=UTF8&qid=1450231875&sr=8-1&keywords=arduino+jumper+wires+female+to+female

Green Supply connector (two wires that originally went directly to the fan):
GND = 12V Ground (-)
VIN = +12V

Green fan connector:
Connect fan's + and - to -V and +V respectively

Signal Lines:
Connect SIG,GND, and +5V(VCC) Dupont connectors to the following pins on the PrintrBoard: http://imgur.com/kxH5Olx

Set PIN 3 as your EXTRUDER_AUTO_FAN

That is the petrockblog Control Block, it handles power and control port input.

Would be happy to:

Super Famicom w/controller $37 [Ebay]

Raspberry Pi 3 $35 [Amazon]

Control Block $35 [PetRockBlog]

100pc Jumper Wire FtF $8 [Amazon]

Screw bits to open the console $5 [Amazon]

Panel Mounted USB Cable $4 [AdaFruit]

Panel Mounted USB Micro Cable $5 [AdaFruit]

Panel Mounted HDMI Cable $6 [AdaFruit]


I replaced the LED with one I had lying around, I did end up buying a soldering iron and cable strippers to use for this as well, just cheap ones off Amazon.

I think that covers everything.