The cable you need to connect your controller to the TRIPLTEK 8 and TRIPLTEK 9 is a USBc to USBc 1 foot long.
You can get iit from one of these two links
Tripltek website: https://www.tripltek.com/product-page/cable-for-dji-mavic-3-air-2s-mini-2-for-tripktek-8-pro-and-7-pro
Amazon link: https://www.amazon.com/Cable-Mavic-Mini-TRIPLTEK-Long/dp/B09Q4MTV83
If you purchase one of these you will need to connect the USBc connector with the USB mark to the controller and the one with the TRIPLTEK mark to the TRIPTLEK