Build Quality

Overall build quality is very solid. There is no rattle when shaking the mouse. When applying lateral pressure, no creaking or flexing of the shell can be observed, and it's impossible to activate the side buttons by squeezing the sides. Lastly, no accidental clicks occur when slamming the mouse down.

Buttons

Main buttons on the M913 Impact Elite are very good. Both pre and post-travel are very low, resulting in a firm and satisfying click response. Click feel is a bit dull, but the buttons are easy to spam, and button stiffness is light. Huano switches (blue shell, white plunger) are used.


Side buttons are very good. Both pre and post-travel are low, and the pressure point is mostly even across the entire buttons as well. They are somewhat hard to press, though, which can be a good or bad thing. The buttons protrude at an angle, which makes them easier to tell apart by feel. Not entirely sure what these types of switches are called. The additional button next to the left main button is much lighter to click and easy to reach, without having to adjust one's grip. A switch from Himake is used for this one.

At the top of the mouse are two buttons for cycling up and down through the set CPI levels. Their click feel is good. A set of switches from CF is used for these, and at the bottom of the mouse is a slider that switches between off-state, wireless, and eco-mode. It's a bit stiff, but reliable. Lastly, a "Mode Switch" button is present as well; it seems to control profiles.

Scroll Wheel

The scroll wheel is good. Scrolling in either direction produces barely any noise, but tactility is severely lacking, resulting in very light scrolling. While this is not very welcome for FPS games, it may be more convenient for other genres. The encoder comes from F-Switch. The middle (scroll wheel) click requires medium force for actuation. I do not recognize the brand of the switch used here.

Coating

While the top features a smooth, matte coating, the sides are shiny ABS plastic. The latter in particular provides barely any grip, and the top is prone to picking up finger marks. All in all, both coatings are below average.

Button Sound Test

Disassembly

Disassembling the M913 Impact Elite is quite easy. First, remove all the mouse feet and screws. On the right side, you'll see a little hook keeping bottom and top shell together, but dislodging that one isn't necessary for opening the mouse. The internal design is simple and efficient. The top CPI buttons and LEDs sit on their own PCB, screwed into the top shell and connected to the main PCB with a 4-pin and 8-pin JST connector. The side-button PCB is connected to the main PCB with a ribbon cable. The main PCB holds everything else. The sensor has been angled by 90° because of space restrictions. An auxiliary PCB next to the scroll wheel provides wheel illumination. Curiously, no screws are used to keep the main PCB in place, just two small pins. While the side-button and top-button PCBs are rather thick, the main PCB is on the thinner side of things. Production date for the main PCB is the 23rd week of 2020, whereas the top-button PCB was manufactured during the 22nd week of 2020. The MCU is a Compx CX52810, for which I haven't been able to find a datasheet.


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