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 Basilisk V3 X Hyperspeed are very good. On the left button, pre-travel is low, but moderate on the right button, whereas post-travel is moderate on both. Button response is firm and snappy nevertheless. While the buttons are visually separated from the shell, lateral button movement is minimal even when provoked, even though the right one can be moved slightly as a whole. 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 good to very good. Both buttons have some pre-travel, but post-travel is very low, resulting in a pleasing button response. The pressure point is mostly 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 switches (white plunger) from CF (ChangFeng) is used for these.

An additional ("sniper") button is located offset below the forward button. It has high pre but low post-travel. Given that it is more a lever than a button, reaching this one typically requires fully repositioning the thumb. Replacing or removing this button is not possible. Another switch (white plunger) from CF is used for this one.

At the top of the mouse is a single button for cycling through the set CPI steps, which feels fine. A seemingly unbranded tactile switch is used for this one. The slider at the bottom switches between 2.4 GHz wireless, Bluetooth, and off-state, and likewise works fine.

Scroll Wheel

The scroll wheel is very good. Noise levels are elevated, but tactility is very good, resulting in very controlled scrolling. The encoder comes from TTC (black) and has a height of 4 mm. Actuating the middle (scroll wheel) click requires medium force. Yet another seemingly unbranded tactile switch (black plunger) is used for this one.

Surface

The Basilisk V3 X Hyperspeed has a roughened matte surface at the top and hardened rubber with a dot pattern at the sides. Grip is fine, and it doesn't attract fingerprints, dirt, or the likes too easily. Cleaning either surface can be difficult, however, especially if one wants to get off everything. All in all, good materials.

Button Sound Test

Disassembly

Disassembling the Basilisk V3 X Hyperspeed is easy. First, all skates except for the sensor ring need to be removed. Four Torx T6 screws are located under the front and rear skates, while two Philips screws are found beneath the thumb-rest skate. The top and bottom shell can now be readily separated.

The internal design isn't particularly complex. The top and side buttons sit on their own PCB screwed to three plastic posts and connected to the main PCB through a ribbon cable. The battery holder likewise slots into said plastic posts. The scroll wheel encoder is attached to the wheel assembly and connected through a 3-pin connector, and an auxiliary PCB providing wheel illumination too is attached to the wheel assembly, which presses down on the scroll wheel switch. Three screws are used to affix the side-button PCB to the plastic posts, and an additional four screws are used to secure the main PCB, along with a single screw for the auxiliary scroll wheel PCB. All PCBs are fairly thin, and the MCU is rear-mounted on the main PCB. The MCU is a Nordic nRF52840, whose datasheet can be found here. Production date for the main and side-button PCBs is the 7th week of 2023.


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