Build Quality

Overall build quality is solid. When shaking the mouse, a slight rattle comes from the scroll wheel. When applying lateral pressure, no creaking or 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 Viper V3 Hyperspeed are excellent. Pre-travel is low and post-travel moderate, resulting in a firm and snappy button response. While the buttons are visually separated from the shell, lateral button movement is minimal even when provoked. Button stiffness is medium. Though described as second-generation Razer mechanical switches, these are in fact modified Kailh GM 4.0 (60 M).


Side buttons are very good. Pre and post-travel are minimal on either button, leading to a snappy button response, though feedback is rather muted and subdued. The pressure point is perfectly even across the entirety of these. Button placement is good as actuation is possible very easily by rolling one's thumb across. A set of surface-mounted switches (beige plunger) from CF (ChangFeng) is used for these.

At the top of the mouse is a single button for cycling through the set CPI levels. Yet another surface-mounted switch (beige plunger) from CF is used for this one. At the bottom of the mouse is a simple on/off-slider, which works fine.

Scroll Wheel

The scroll wheel is decent. Noise levels are substantial to where they lend the wheel a cheap and hollow feel, but tactility is quite good, resulting in controlled scrolling. The encoder comes from TTC (blue) and has a height of 13 mm. Actuating the middle (scroll wheel) click requires medium force. A seemingly unbranded tactile switch is used for this one.

Surface

The Viper V3 Hyperspeed has a smooth matte surface all over. Grip is fine, and it doesn't attract fingerprints, dirt, or the likes too easily. It 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 Viper V3 Hyperspeed is reasonably easy. First, all skates except for the sensor ring need to be removed. After removing the four Torx T6 screws located beneath them, several clips keeping top and bottom shell tightly shut ought to be removed as well, which is best done by wedging a credit card (or similar) in. When doing so, make sure not to rip the cable going from top to bottom.

The internal design is rather unusual. The main PCB only has the sensor, scroll wheel, scroll wheel switch, and main button switches. In addition, an FFC holding an LED goes to the front for illumination purposes. From the main PCB, a ribbon cable leads to the top PCB, which has the CPI button switch, MCU, and antenna. From here, an FFC goes to the side-button PCB, which is clipped into a plastic assembly whose full removal apparently requires dismounting the right main button piece. All PCBs are very thin, and three screws are used to affix the top PCB, and another three to affix the main PCB to the bottom. The MCU is a Nordic nRF52840, whose datasheet can be found here. The Bluetooth functionality of the chip remains unused. Production date for the top PCB is the 26th week of 2023 and for the main PCB the 24th week of 2023.


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