The Endgame Gear OP1 8K is the latest offering from the upstart brand which has been making an impact in the enthusiast gaming space, with a focus on producing competitive gaming mice (though they’ve recently also branched out into keyboards). The 8K in the name signifies its 8000Hz polling rate, which is one of several high-end features this mouse brings that are designed to give players an edge in fast-twitch shooters. Let’s see if the OP1 8K made it into our our best gaming mouse guide for 2024.

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Pros

The lowest click latency on the market
8K polling rate with custom firmware to maximise this
Excellent grippy coating
Hot-swappable switches on main buttons
Easy to take apart and customize
Great build quality
Very reasonably priced
Great onboard software

Cons

100% PTFE skates must be bought separately

Tech Specs

Sensor

Pixart PAW 3395

DPI

50 – 26,000

Weight

50.5g / 1.78oz

Size (H x W x D) mm

118.2 x 60.5 x 37.2mm

Buttons

Max polling rate

8,000Hz

Connectivity

USB Type-A (1.8m/6ft Black Flex Cord 5.0)

Battery life

n/a

Colors

black, white

Backlight

n/a

Warranty

2 years

Software support

Endgame Gear

Design & Features

The Endgame Gear OP1 8K is a smaller-sized mouse with a fairly narrow form factor. This is a lightweight model, being around 10g lighter than the Corsair M75 Air that we reviewed at the end of last year and coming in at 50.5g / 1.78oz, though you can reduce this a bit further by changing the skates and the cable if you like. The cable is a braided Flex Cord 5.0 model which, as referenced, can be removed.

You get your classic five button setup, with the two side buttons on the left. The stock switches for the two main buttons are the mechanical Kailh GX with 55-60gf binning, though these can be swapped out if you wish for lighter Kailh GX 50-55gf switches that you can buy separately. These switches were developed from the ground up in a partnership between Kailh and Endgame Gear, so you can be assured of great integration with the firmware. Alternatively you can fully hot-swap the switches out for completely different mechanical switches if you take the mouse apart.

Endgame has kept the screws on the bottom of the mouse exposed, with the various skate options leaving gaps to keep them uncovered so you can open up the bottom of the mouse to tinker as you like; they’ve also included a matching screwdriver within the box. This is a nice touch and cements the enthusiast credentials of the brand. The skates/feet you get as standard are dyed PTFE, sadly not the 100% PTFE which we would have hoped to see, but you can buy these separately. The ‘Mode’ button underneath the mouse can be light-clicked to cycle between DPI settings and long-clicked to cycle between polling rates.

Color options come in either white or black, with the black being completely black all over but the white model coming with black detailing that contrasts against the main chassis – specifically the Endgame Gear logo, side buttons, mouse wheel, cable, and the bottom trip on the chassis. Different aesthetic skins can also be purchased separately to tweak the look of the device to your liking. There’s no RGB to speak of on this mouse as it’s all focused on performance, which is fairly typical of the competing products out there.

The standard Endgame Gear software we’ve seen in other products is replaced by the OP1 8K configuration tool for this mouse, which looks less nice but in terms of functionality its equally great: a straightforward user friendly experience with lots of detailed options for customization. All buttons on the mouse besides the left click (although a left-handed mode is available to swap the right and left buttons) are fully remappable in this software.

Price

The Endgame Gear OP1 8K has an MSRP of $74.99 / 74,90€ / £69.95, which is a very good price indeed for a premium mouse, even a wired one (which do tend to be cheaper). It’s very slightly cheaper than the Corsair M75 (wired), which is a great mouse, but not up to the level of the OP1 8K in terms of its premium competitive design.

Performance

We put this gaming mouse to the test in gaming and general use scenarios to see how it performed, and we were very impressed with the results.

This is an extremely tough, durable, and solid feeling mouse, with barely any discernible give or looseness on any of the components or sections: an ideal competitive device that should take some punishment. The coating of the mouse is particularly great: being exceptionally grippy even when your palms get a bit mom’s spaghetti, and probably the best we’ve experienced.

Another stand-out feature of this mouse is the click latency – or lack thereof. Whereas other competitive gaming mice typically have their click latency measured in the 0.2-2.0 milliseconds window, the OP1 8K gets around 0.08-0.09ms (or 80-90 microseconds), which is the best we’ve seen in any gaming mouse by some margin. Effectively this means that nobody should be able to discern any click latency at all when in game. There’s virtually no pre or post travel on the side buttons, and all the button clicks sound very satisfying.

Most polling rates quoted by mouse brands for their products are inaccurate, particularly on wireless mice, with the actual real-world rate being hampered by firmware bottlenecking and other issues. The OP1 8K however consistently hits the promised 8K in real-world scenarios, which is very nice indeed (you need to take off Motion Sync under Advanced Settings in the software to get the most out of this). You average gamer possibly wouldn’t be able to tell a significant difference, but if you’re a competitive player looking for that extra edge in your twitch shooters, and have a monitor with a high enough refresh rate to utilise it, then this is a strong positive in the OP1 8K’s favour. The 650 IPS tracking rating and 50G acceleration are as high as they need to be: more than enough for even the most vigorous playstyle.

The glide of the mouse was decent with the stock feet/skates, however it’s probably worth picking up those 100% PTFE alternatives for the true perfect experience. Obviously this is a wired mouse not a wireless model which will put some people off, but if you combine it with a mouse bungie then you shouldn’t have any problems (we didn’t anyway our testing).

The small and narrow form of the mouse is best suited to those who favour a fingertip or claw grip (either relaxed or aggressive) or have smaller hands and favour different grips. If you’ve got particularly large hands then unfortunately you might find this mouse a bit too small, unless you utilise a fingertip grip, in which case it should still work well.

If you play competitive first person shooters, are looking for a smaller-sized mouse, and don’t mind if it’s wired, then you should definitely buy the Endgame Gear OP1 8K. It has exceptional build quality with a nice grippy coating, is fantastically responsive, has the lowest click latency you can get, has great customization options, great custom software and firmware, and yet is still available for a great price!

There are no real downsides to this mouse. Even the fact that 100% PFTE skates must be bought separately isn’t a particularly notable negative, as the mouse is so reasonably priced the extra expense isn’t a big ask. As long as it suits your hand size and/or preferred grip, this is basically the perfect competitive gaming mouse.

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