Besides the size difference, the Apex 9 TKL includes a dedicated volume roller and media button for easy-access to system volume and media playback controls. The Apex 9 Mini has side-printed functions on certain keys to fulfill full-size keyboard functionality.
So in short:
- Apex 9 TKL = easier access to volume and media controls
- Apex 9 Mini = more compact design, with extra functions built into key combos
GLHF, and happy gaming! 😄