Endgame Gear OP1 8k review: a tweakable gaming mouse that just can’t keep up with the competition

Endgame Gear OP1 8k review

The Endgame Gear OP1 8k is the German gaming peripheral specialist’s enhanced version of its OP1 wired mouse, which is capable of polling rates of up to 8,000Hz, hence the '8k' appendage to the model name. Users can also open it up and swap out the switches, which will appeal to the subset of gamers who are very particular about their clicks.

However, what might divide that group is the form factor of the OP1 8k. The small size, combined with the pronounced hump, might make it difficult for some to achieve a secure grip – although Endgame Gear does specify that the mouse only supports a claw grip, making it a suitable option for those who prefer this style. The super-lightweight, which Endgame Gear approximates to be about 50.5g, also helps rapid movement.

Everyone will welcome the lack of drag, though. The USB cable is light and flexible, and the cable base stress-relief is angled upwards – a smart design choice that helps to further reduce surface contact, acting like an ersatz mouse bungee. However, the cloth material surrounding the cable is very thin; during my time with the OP1 8k, it already began to fray slightly, spelling trouble for its long-term durability.

Although the lack of cable drag helps the mouse to perform at its best, the same can’t be said for the PTFE skates. They cover a small surface area, so glides aren’t as smooth as they are with the best gaming mouse options. Thankfully, larger PTFE skates are included in the box, which helps to reduce friction. What’s worse, though, is that using the OP1 8k on hard surfaces can cause the middle to grate unbearably, and even the optional skate that goes around the optical sensor doesn’t fix the problem. But if you’re using the OP1 8k exclusively on padded surfaces, this will be a moot point.

Another disappointing aspect of the OP1 8k is the button quality. The mouse clicks aren’t as snappy as I would have liked, taking too long to rebound. Endgame Gear claims that its Kailh GX switches that come preinstalled have a short internal travel and good “spamability”; I found they couldn’t be actuated quickly enough to make them suitable for such quickfire pressing.

The side buttons also feel harsh since they aren’t dampened at all, while the scroll wheel is a little too notchy for my preferences, and the middle button doesn’t feel as solid or as secure as it should be. I didn’t have enough confidence to use it in the heat of battle, worrying that I’d trigger the scroll function by mistake. Admittedly, this is an issue I tend to find with many gaming mice.

On the surface, the free configuration tool is as basic as it gets; it wouldn’t look out of place on a Windows 95 machine. The argument could be made that the barebones interface makes it an extremely lightweight application, therefore saving precious computing power. However, during my time with it, it did crash on one occasion, when I was switching back and forth between it and a game window to change settings on the fly. On other occasions when switching, the “Apply” button for confirming adjustments failed to appear. It could well be the case that such problems may not be experienced on setups beyond my own, but it’s an issue worth noting all the same.

There are various settings that can be adjusted using the tool – but, unfortunately, none of them is explained, so unless you’re au fait with the terminology, you’ll likely have some googling to do.

First, it measures sensitivity in the less common unit of counts per inch (CPI) rather than dots per inch (DPI), but essentially they amount to the same thing. Between one and four quick settings are available, which can be cycled through using the mode button on the underside of the OP1 8k. There’s also the ability to adjust the sensitivities of the X and Y axes independently.

The lift-off distance (LOD) can be altered to between 1mm and 2mm, which are increments so small that I could barely discern the difference during gameplay. Of course, I’m far from being an esports pro. For most gamers, though, this won’t be a setting worth adjusting given its limited range.

There are also toggle boxes for angle snapping and ripple control, which aren’t settings you always see in peripheral software. There’s no explanation as to what these settings do within the app. So, for those who aren’t familiar with the terms, angle snapping is an aid to help keep your cursor movements along a straight path, whereas ripple control is meant to help smooth mouse movements.

Angle snapping does indeed work as intended; however, I also found that it increases the acceleration of cursor movements, which is jarring. As for ripple control, its aim of reducing mouse jitter comes at the expense of “a few frames of added motion delay,” as Endgame Gear explains on its website, which is anathema to competitive gamers and not worth the cost of activating. Regardless, in practice, I found it made little difference to the smoothing of my movements.

Under the advanced settings tab, you’ll find adjustments for the polling rate, with options between 1,000Hz and 8,000Hz. The aforementioned mode button can cycle through four different poll rates within this range.

There’s a Motion Sync checkbox as well; but yet again, there’s no explanation on what this does. Endgame Gear explains on a Reddit post that the polling events and sensor data become synchronized when enabled, in order to make data more consistent, but at the cost of adding a 1ms input lag. Again, this is something that will probably make some players wince, and during my tests I failed to notice any real difference with this setting turned on.

One feature that certainly is noticeable is the slam click filter, which prevents accidental mouse button activation when vigorously swiping, as you might when using low DPI/ CPI settings in FPS games, for instance. This is a setting that definitely works as intended, and will likely be one you’ll want to have enabled permanently.

Another set of adjustable (and not always seen) parameters are the multiclick filters. These determine how many button presses can be registered in quick succession – more commonly known as debouncing. Those who play Minecraft PvP will be among those most interested in these settings, as rapid-fire clicks are a core part of that game.

There are multi-click filter adjustments for every button on the OP1 8k (barring the underside mode switcher), ranging from 0-25. Lower values increase the number of clicks registered when spamming the given button; but misclicks are more likely, too, so you’ll want to find the setting that works best for you.

The right and left mouse buttons also have an optional dropdown box next to their respective multi-click filter settings, labeled SPDT (single pole, double throw). This refers to the type of switches the mouse buttons use, which allow for greater debouncing adjustments. You’re given three modes to choose between: GX Speed Mode, GX Safe Mode, or off.

The former lowers click latency, while the latter increases it. If off is selected, then you can use the standard 0-25 multi-click filter sliding scale instead. I noticed no real difference between these GX modes and the sliding scale, so it ultimately seems like a wasted addition.

Aside from these tweaks, the software also allows you to remap the buttons on the OP1 8k. This doesn’t merely involve swapping them around: you can also assign them to trigger a keyboard key, cycle the CPI, or perform certain media-based functions, such as play, pause, open Windows Explorer or even a web browser – although the latter didn’t work on my PC.

It isn’t just the software that’s customizable; one of the biggest draws of the OP1 8k is that the hardware is customizable, too. A small screwdriver is included, so you can open up the base and swap out the main button switches (and the USB cable) if you so choose.

Endgame Gear offers a variety of different switches, which can be installed without soldering; it’s merely a case of inserting terminals. Endgame Gear even has a universal switch set, so you can use the OP1 8k with any mechanical switches you like, again without soldering. You can also take out the side button switches, although Endgame Gear offers no replacements for these.

I wasn’t able to test out these various switch options for myself, but having opened up the OP1 8k and removed the switches, I can say that it’s a fairly straightforward process. However, I did find that the right mouse button terminal wasn’t as easy to detach as the left. Also, make sure you have the terminal the correct way around when inserting it into the right mouse button slot – I found this was easy to get wrong.

While the OP1 8k aims high in its pursuit of being a high-end gaming mouse, featuring some useful software and hardware customization options, ultimately, it’s let down by its build quality and overall feel, failing to live up to its relatively high asking price.

Endgame Gear OP1 8k: Price and availability

• $74 / £69 / AU$125
• Available now
• Black and white colorways

The OP1 8k is priced at $74 / £69 / AU$125 and is available in the US, UK, and parts of Europe. Despite it having an Australian list price on Endgame Gear’s website, it isn’t currently available in the territory.

Compared to other wired gaming mice on the market, the OP1 8k doesn’t fare well against the competition. Razer is currently offering its DeathAdder V3 wired mouse for less than the current price of the OP1 8k, and although it’s a few years old at this point, it offers a similar spec, including an 8kHz poll rate and an only slightly heavier weight of 59g.

However, the click filtering and movement smoothing parameters that the OP1 8k’s configuration tool offers stand in its favor. Razer’s equivalent software, Synapse, doesn’t provide these same tweaks; but it does offer a whole host of other customizable options with which you can experiment.

Unlike many other gaming mice, you can open up the OP1 8k and change out the switches. However, buying new switches is of course an extra expense, and there’s no option to spec the OP1 8k with the switches of your choice from the outset.

Endgame Gear OP1 8k: Specs

Should you buy the Endgame Gear OP1 8k?

Buy it if...

You want something small and very light
With a weight of about 50g, the OP1 8k is on the lighter end of the scale, and the small size will be welcoming to those with similarly proportioned hands who prefer using a claw grip.

You want to tweak your settings and hardware
Alongside the standard mouse sensitivity adjustments, the configuration tool for the OP1 8k allows you to set smoothing options and alter the debounce sensitivity, too. You can also take it apart to swap out the switches.

Don't buy it if...

You want a wireless gaming mouse
Gone are the days when wireless gaming mice were considered too slow and unreliable for gamers. As a result, hybrid models that allow for both wired and wireless play are more popular than ever; but unfortunately, the OP1 8k is wired only.

You want high-quality clicks
None of the buttons or the scroll wheel on the OP1 8k feel particularly great to actuate, which is a serious problem for gamers. In particular, the mouse buttons just aren’t snappy enough.

Endgame Gear OP1 8k: Also consider

How I tested the Endgame Gear OP1 8k

• Tested for two weeks
• Used for FPS titles and general PC use
• Over a decade of PC gaming experience

To test out the OP1 8k, I played FPS titles Ultrakill and Day of Infamy , which cover both the fast-paced and tactical ends of the genre. I also played strategy, action and adventure games, as well as using it for general PC use, such as web browsing.

I have a decade of PC gaming experience, and my mouse of choice for most of that time has been the evergreen Logitech G502 Lightspeed wireless mouse, which was my main point of comparison alongside the Razer Viper V3 Pro.

Read more about how we test

First reviewed: June 2024