Genuine Ross-Tech Hex-V2 cables use an Atmel microcontroller with a unique bootloader. Clones, however, use cheaper PIC or ARM STM32 chips running emulated firmware.
: Some users report better stability on 64-bit systems by installing the 32-bit version of the software. Interface Upgrades | Product categories - VCDS - Ross-Tech vcds 2231 hex v2 clone repair upd