The TI-84 KE, a custom board that houses a TI-84+CE calculator. Hako Violet switches, custom stainless steel plate, custom dye-sub PBT caps, custom PCB, 3D printed case. Link to build log in
Honbay 10PCS AC 150V 6A 2.54mm Pitch 4 Pin PCB Mount Screw Terminal Block Connector for Arduino: Amazon.com: Industrial & Scientific
Amazon.com : Texas Instruments TI-84 Plus C Silver Edition Graphing Calculator, Black : Office Products