Build Quality

Overall build quality is solid. When strongly shaking the mouse, a rattle comes from an indeterminable location. When applying lateral pressure, minor creaking but no flexing of the shell can be observed. Activating the side buttons by squeezing the sides is impossible. Lastly, accidental clicks do occur when slamming down the mouse if key response has been set to 12 ms or less within the software.

Buttons

Main buttons on the Zephyr Pro are excellent. Pre-travel is low and post-travel moderate, resulting in a firm and satisfying button response. In fact, click feel is very similar to the Glorious Model O. While these buttons are visually separated from the shell, button wiggle is minimal and needs to be provoked to be noticeable. Button stiffness is medium to light. A pair of Omron D2FC-F-K (50M) (China) switches is used.


Side buttons are very good. Pre and post-travel are minimal, resulting in a snappy button response, although click feel is somewhat lacking, and the back button doesn't sit as firm as the forward one. The pressure point is even across the entirety of these. Button size and placement are good as actuation is possible rather easily by rolling one's thumb across. A set of tactile switches (MWK) is used here.

At the top of the mouse is a single button for cycling through the set CPI levels. Its click feel is good. A seemingly unbranded tactile switch is used for this one. At the bottom are a button for cycling the RGB lighting effects and the fan, both of which are working just fine.

Scroll Wheel

The scroll wheel is good. Scrolling up and down is rather noisy, and the wheel itself feels flimsy, but the steps themselves at least have decent separation, resulting in slightly above average tactility. The encoder comes from TTC (yellow core) and has a height of 13 mm. The middle (scroll wheel) click requires medium to high force for actuation. Another seemingly unbranded tactile switch is used here.

Coating

The Zephyr Pro has a smooth matte surface all over. It is quite similar to the Glorious Model O matte coating, albeit not entirely identical. It doesn't attract fingerprints, dirt, or the likes too much, is easy to clean, and there are no signs of wear left after doing so. All in all, excellent materials.

Button Sound Test

Disassembly

Disassembling the Zephyr Pro is fairly easy. The screws are located beneath the rear skate. Once those are taken care of, the front needs to be nudged until the clips there are dislodged. The internal design is equally simple. Everything except for the CPI-button PCB screwed into the top shell and connected through a ribbon cable sits on the large main PCB, which covers the entire bottom plate and is of moderate thickness. The CPI-button PCB also serves for indirect illumination of the scroll wheel. Two screws are used to affix the PCB to the bottom shell, along with the two screws used to keep the fan in place. Production date for the main PCB is the 26th week of 2021. The MCU is a Holtek HT68FB560, whose datasheet can be found here.


As for the soldering and general quality of the PCB, I'm unable to find any noteworthy flaws.