10 Pcs 10 Pin 1.27 Mm Pitch 2x5 Position Idc Socket Extension Flat Ribbon Cable For Isp Jtag Download Pin To Pin Same Direction - Connectors - AliExpress
JTAG to SWD Adapter from embeddedProjects on Tindie
JTAG (2x10 2.54mm) to SWD (2x5 1.27mm) Cable Adapter Board : ID 2094 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Eletechsup 2x5 JTAG IDC Male to Female Dupont Wire Cable for Arduino USB Logic Analyze ARM Xilinx Altera Lattice FPGA CPLD (2x5PIN to 10PIN IDC JTAG): Amazon.com: Industrial & Scientific