Build Quality

Overall build quality is very solid. There is no rattle when shaking the mouse. 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 when slamming down the mouse do not occur.

Buttons

Main buttons on the V8 are good. Pre-travel is moderate and post-travel high, resulting in a fairly firm and snappy button response nonetheless, though the right button ends up feeling mushier than the left one. Being visually separated from the shell, button movement is moderate when provoked. Button stiffness is medium. A pair of Omron D2FP-FN2 (China) optical switches are used.


Side buttons are good. Pre-travel is low, whereas post-travel is high, resulting in fairly pleasant actuation. The actuation point is mostly 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 2-pin, low-profile switches from TTC (brown, blue plunger) are used for these.

At the bottom of the mouse is a button for cycling through the set CPI levels, which works just fine. A seemingly unbranded tactile switch is used for this one. A slider at the bottom switches between on and off-state, which also works fine.

Scroll Wheel

The scroll wheel is very good. Noise levels are mostly under control, and tactility is good, with distinct steps allowing for controlled scrolling. The encoder comes from F-Switch (yellow/pink core) and has a height of 9 mm. The middle (scroll wheel) click requires high force for actuation. A seemingly unbranded tactile switch (blue plunger) is used for this one.

Surface

The V8 has a matte surface all over. Grip is fine, and it doesn't attract fingerprints or dirt too much. It is easy to clean, and there are no signs of wear left after doing so. All in all, very good materials.

Button Sound Test

Disassembly

Disassembling the V8 is moderately difficult. The screws are located beneath the front and rear skates. After removing those, five clips placed at the sides and rear also need to be removed, which can be surprisingly tricky. Wedging a credit card or something similar in is likely the best approach. Caution needs to be applied when separating the top and bottom shell to avoid ripping the cable connecting the two.

The internal design is highly efficient. The side buttons sit on their own PCB screwed into the top shell and connected through a ribbon cable to the main PCB. The battery is stuck to the bottom towards the rear. Everything else sits on the very thin and compact main PCB, which has been affixed to the bottom with four screws. The MCU is a Nordic nRF52840, whose datasheet is found here. The Bluetooth capability of the chip remains unused. Production date for the main PCB is the 38th week of 2024.


As for the soldering and general quality of the PCB, I'm unable to find any noteworthy flaws. That said, the front post to which the side-button PCB has been screwed to had effectively fused with the PCB, preventing its removal.