I am a fully licensed supplier.POLICE FORCE -CPU-U26.L4SKU: CPU-26PFOC$13.00PriceQuantityAdd to CartWILLIAMS ROMSU26.L4 TECH SPECSWilliams: Police Force ROM Revisions Game Version L-4 U26 : Checksum: ECE0 U27 : Checksum: 5C76 Sound Version L-2 U4 : Checksum: 6CB0 Speech Version L-1 U19 : Checksum: 7FAF U21 : Checksum: 7F54 U22 : Checksum: DD4C ROM REMOVAL & INSTALLATION INSTRUCTIONS https://www.pinballrom.com/_files/ugd/0a3635_1f0af8ba09644eb78d30e50f112cf374.pdf