openkey-cps1 / cps1.5 / kabuki (inifinikey)

Similar in function to the legendary Infinikey, from undamned/UD-Tech, the openkey-cps1 and openkey-kabuki enable a games decryption keys to be injected on boot without the need for a battery.

openkey-cps1 is an on-the-fly CPS-1 B-21 chip programmer that consists of a PCB that sits between CPS1/1.5 B and C boards. It only supports the following C-Boards: 90630C-4, 90631C-5 & 92641C-1.

openkey-kabuki is an on-the-fly Kabuki (QSound) CPU key programmer that consists of a PCB that sits between the CPU socket and the Kabuki CPU. The Kabuki CPU is found in Mitchell and CPS-1.5 arcade boards and contains keys for decrypting/decoding the program ROMs.

There is absolutely zero difference in game function between openkey-cps1 / openkey-kabuki and a live battery.

NOTE: The "openkey-cps1.5 (combo)" we offer in our store comes with both an openkey-cps1 and openkey-kabuki and has a special version of the openkey-cps1 without the header shroud above the pins. This allows a little more space for clearance when closing the cps-1.5 case; either version of the openkey-cps1 will fit in the case just fine, however we've opted to include this special version in our combo package for ease of installation.

Information about our manufacturing process: Artisenal small-batch produced in sunny New Zealand by a fellow arcade enthusiast "hatmoose" with the same love care and attention that you have for your boards.

Every Openkey is assembled by hand using top quality parts and equipment from reputable suppliers. The bare boards are sourced from JLCPBC.

CPS1, CPS1.5 and Kabuki openkeys have hardware DIP switches, no need to solder jumpers - this makes them easy to configure for a solderless install.

Every part is hand-assembled using top quality Kester 63/37 RA Solder, genuine Amtech (STiRRI) V3-TF flux, and genuine Hakko tools and tips.

Every completed board is visually inspected, indivdually programmed, tested for electrcial QA, then cleaned in a 3-stage ultrasonic process using Electrolube SWAS PCB cleaner, de-ionised water, and Isopropoal alchol. After cleaning every board is dried in a dehydrator and inspected again under UV light to ensure no trace of manufacturing residue remains.

openkey-cps1 and openkey-kabuki are both open source projects, it's author has kindly given us permission to make and sell these products on the site.

openkey-cps1 Installation guide, jumper settings and information available HERE

openkey-kabuki Installation guide, jumper settings and information available HERE