To open Strix Tactic Pro, you have to remove the eight screws hidden under grippy pads and rubber-covers respectively. Once you're done with that, you're going to have to be careful since there are a couple of clamps further holding it together. Once the plastic frame is removed, you gain access to the Cherry-MX board, with yellow LEDs mounted on a very thick steel-plate.
Turning the board around, you get a view of the black PCB, which is clean and neatly soldered with almost no remnants of flux-residue. The brain is a 50MHz, 32bit, ARM Cortex-M0 based MCU, the LPC11U14. For macro, the chip MX25L4006E is used for storage, while AMS' AMS1117 3.3 voltage-regulation chip was used for NKRO.