PLEASE NOTE: ITEMS ORDERED BETWEEN 20th DEC 2024 and 5th JAN 2025 WILL NOT BE SHIPPED UNTIL 6th JAN 2025Mini DIN 9 pin PCB mount socket commonly used on Acorn Archimedes and RISC PC era Arm machines.Confirmed Fits:A3000A3010A3020A4000A5000RiscPCThis might also fit the Archimedes keyboard mounted soc..