FPC Splitter extension board (for Picoclick C3) from makermoekoe on Tindie
Amazon.com: uxcell 0.5mm Pitch 20 Pins to 20 Pins Extension Connector Aapter for FFC FPC Cable Extend Zip HDD : Electronics
Amazon.com: MECCANIXITY FFC FPC Extension Board PCB Extend Zip HDD Connector 40 Pin 0.5mm Pitch Single Side for LCD 3D Printer Camera DVD TV Laptop Pack of 2 : Electronics