Hikig 5 Pcs/Lot 5Pin Cable for SANWA Joystick, Zero Delay USB Encoder, Mayflash F300 Joystick and 2.54mm Pitch Female to Female JST XH Adapter 20cm

These work too. More but free next day shipping and you get 5. I must’ve used them for my Mayflash upgrade and a custom brooks board build and have had no issues. If you want more upgrade parts by all means add to an FA order. They are fairly local to me, I tried to go pick my order once, but not set up for that. I’m impatient https://a.co/d/0gQNT2dF

Nope. If you're gonna go with the PCB version here's a harness for that.https://www.amazon.com/dp/B07BK12QBG