Build Quality

Overall build quality is very solid. There is no rattle when shaking the mouse. When applying lateral pressure, no creaking of the shell can be observed. The side buttons can only be activated by applying excessive force to the left side. Lastly, when slamming the mouse down, no accidental clicks occur.

Buttons

Main buttons on the Model D are excellent. Pre-travel is very low and post-travel is low, too, which results in a firm and satisfying click feel. The degree of button wiggle is as low as it physically can be for this kind of button design (buttons separated from the main shell). Button stiffness is light. Omron D2FC-F-7N (20M) (OF) switches are used here.


Side buttons are excellent. Pre-travel is very low and post-travel is low, on both the back and forward button. As a result, the click feel is firm, with only very minor mushiness. The pressure point is even across the entire button. As for their placement, the side buttons sit fairly high and are smaller compared to (for instance) the G403 side buttons, so depending on one's thumb size and placement, it can be somewhat difficult to actuate them just by rolling one's thumb over the side buttons. Huano (green plunger) switches are used here.

On the top of the mouse is a button for cycling through the set CPI levels. Its click feel is decent. Another Huano (green plunger) switch is used for this one.

Scroll Wheel

The scroll wheel is good. It's quiet when scrolling down, but a bit noisy when scrolling up. The individual steps are fairly tactile and well-separated. The middle (scroll wheel) click requires moderate force for actuation. The encoder is a brown F-Switch, while the switch for the middle (scroll wheel) click is yet another Huano (green plunger).

Coating

If you know the black matte coating of the Model O/O- then the matte coating of the Model D should be very familiar to you. It's very grippy and doesn't attract fingerprints, dirt or the likes too much. It's easy to clean, and there are no signs of wear left after doing so. All in all, an excellent coating. The glossy coating is exactly what you would expect from a glossy coating: incredibly grippy for dry hands and very easy to maintain.

Button Sound Test

Disassembly

Taking the Model D apart is quite easy. Remove the two bottom feet and the screws beneath them, and the top shell will come off with ease. Some caution ought to be applied though, as the side strip LEDs are connected to the main PCB with very thin ribbon cables. Here's a piece of advice: There's a small lock that needs to be released before the ribbon cable can be removed from the sockets on the PCB. Carefully nudge it open with your fingernails to avoid breaking it. When putting it back together, make sure the ribbon cables are fully clipped into the socket or the LED strips won't get full power.


The design is beautifully simple and straightforward. The side LED strips are screwed into the top shell. The side-button PCB is part of the bottom shell, while the main PCB holds everything else. The main PCB is affixed to the bottom shell by three screws at the front and two clips at the back. The PCB is rather thin, which is expected from a mouse focused on keeping the weight low. The only thing I'm not exactly a fan of is the excessive amount of glue at the two ends of the cable that connects the side-button and main PCB. The MCU is a Bayi BY8948-00006. I do not have any further information on this part.

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