The Endgame Gear OP1 8k is a wired gaming mouse that shares the same shape as other models in Endgame Gear's OP1 lineup. It uses a PixArt 3395 sensor, one of the most accurate and consistent sensors currently available. Other standout features include an 8000Hz maximum polling rate and SPDT (single pole double-throw) Kailh GX switches, which offer additional switch performance modes compared to the mechanical switches used in most gaming mice. For more details, see the Main Button section below. Additionally, these switches are designed to be easily swappable. The mouse is also easy to disassemble, with an included screwdriver and screws on the bottom of the mouse that you can access without damaging the feet.
Our Verdict
The Endgame Gear OP1 8k is adequate for work, though it isn't designed specifically with this use case in mind. It has amazing build quality and a comfortable, symmetrical shape. You can reprogram buttons using the configuration software. Unfortunately, its scroll wheel lacks productivity features like L/R inputs and free-scrolling.
- Amazing build quality.
- Small shape is unsuitable for large hand sizes.
- No wireless connectivity.
- Scroll wheel lacks free-scrolling and L/R tilt inputs.
The Endgame Gear OP1 8k is a remarkably good FPS gaming mouse. It has amazing build quality and is extremely lightweight, making it easy to move quickly and accurately. It also has incredibly low and consistent click latency and exceptional all-around sensor performance. Its symmetrical shape is ideal for claw or fingertip grip types. However, its small size makes it best suited for medium and smaller-sized hands.
- Incredible click latency.
- Exceptional sensor latency.
- Extremely lightweight.
- 8000Hz polling rate.
- Amazing build quality.
- Small shape is unsuitable for large hand sizes.
The Endgame Gear OP1 8k is good for MMO gaming but doesn't have nearly as many side buttons as a dedicated MMO model. That said, you can still program buttons using the configuration software. It also has amazing build quality and delivers superb raw performance.
- Incredible click latency.
- Amazing build quality.
- Small shape is unsuitable for large hand sizes.
- Significantly fewer side buttons compared to dedicated MMO mice.
The Endgame Gear OP1 8k delivers exceptional raw performance. It has a maximum polling rate of 8000Hz, incredibly low and consistent click latency, and exceptional all-around sensor performance. Altogether, this mouse is well-suited for playing games in any genre and at any competitive level.
- Incredible click latency.
- Exceptional sensor latency.
- 8000Hz polling rate.
Changelog
- Updated Mar 10, 2026: We've converted this review to Test Bench 1.5.2. This update removes the Delay To Start Of Movement and Delay To End Of Movement measurements from the Sensor Latency test. See our full 1.5.2 changelog for details.
- Updated Aug 19, 2025: We've converted this review to Test Bench 1.5.1. This update removes less relevant or redundant elements, including several videos. We've also adjusted our Sensor Latency testing, resulting in minor score changes. See our full 1.5.1 changelog for details.
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Updated Jul 03, 2025:
We've added a link to the LAMZU Inca in the Hand Size Recommendation section.
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Updated Dec 11, 2024:
We've updated the Differences Between Variants section to include details about the limited edition Purple Frost colorway.
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Differences Between Sizes And Variants
The Endgame Gear OP1 8k is available in Black and White. Endgame Gear has also released a limited edition Frost Purple colorway, but it's no longer being sold.
| Name | Color Options | Sensor Model |
|---|---|---|
| Endgame Gear OP1 8k | Black, White | PixArt 3395 |
| Endgame Gear OP1 8k Limited Edition | Purple Frost | PixArt 3950 * |
Note: The limited edition variant uses a PixArt 3950 sensor. This sensor has the option to enable Motion Sync at 8000Hz polling, an option that synchronizes USB polling events with sensor data and can provide slightly smoother and more consistent visual input but may result in marginally more sensor latency. We expect most tests in this review to apply to both variants, except the sensor latency results, which will likely be very similar to but not fully representative of the limited edition variant.
Other models in the wider OP1 lineup at the time of writing include the standard Endgame Gear OP1, the Endgame Gear OP1 RGB, and the wireless Endgame Gear OP1we.
Popular Mouse Comparisons
The Endgame Gear OP1 8k is positioned as the highest-performing model in Endgame Gear's OP1 lineup. It's notable for its 8000Hz polling rate and particularly for its single-pole double-throw Kailh GX switches, which have specialized performance modes you can toggle using the configuration software. For more details, see the Main Button section below. This mouse is also designed to be fairly easy to disassemble compared to many similar gaming models; it includes a screwdriver, and you can easily access screws on the bottom of the mouse without damaging the feet. The cable is easily replaceable, and the left- and right-click buttons are swappable. Endgame Gear sells both replacement cables and alternative aftermarket switch options on their website.
This mouse is a compelling option for any enthusiast open to using a wired-only model. It offers bleeding-edge performance at a lower price point than premium wireless models with comparable raw performance, like the Razer Viper Mini Signature Edition, the Finalmouse UltralightX, and the WLmouse Beast X.
For more recommendations, see our picks for the best lightweight mouse, the best FPS mouse, and the best wireless gaming mouse.
The Endgame Gear OP1 8k v2 is the successor to the Endgame Gear OP1 8k. It shares the same shape and Kailh GX switches and supports the same hot-swappable switch packs sold separately. The v2 introduces a new sensor, MCU, and scroll wheel encoder. These internal updates don't result in any measurable or noticeable performance improvement, but the OP1 8k v2 continues the series' legacy, and both versions remain among the best-performing and highest-quality wired mice available.
The Endgame Gear OP1 8k and the Endgame Gear XM2 8k are lightweight wired gaming mice with very similar, outstanding performance but different symmetrical shapes. On the one hand, the OP1 8k is a bit more narrow in the middle with a lower profile hump and flatter sides that widen towards the back. It's also best for smaller hands. On the other hand, the XM2 8k is a bit larger with a broader backside designed to provide support for your palm.
The Endgame Gear OP1 8k and the Endgame Gear OP1we are gaming mice that share the same shape and belong to the same wider product lineup. The OP1 8k is a wired-only model that's more geared towards enthusiasts. It offers significantly better click latency and sensor latency. It's also lighter and has a higher maximum polling rate of 8000Hz. It also uses mechanical SPDT switches. The OP1we, on the other hand, is a wireless model. It still offers superb raw performance but doesn't quite match that of the OP1we. It uses optical switches and has a lower maximum polling rate of 1000Hz.
The Finalmouse UltralightX and the Engame Gear OP1 8k are gaming mice aimed at enthusiasts. Both have fairly low-profile symmetrical shapes and offer outstanding raw performance. The first major difference between them is that the Finalmouse is a wireless model. It's also a bit lighter and has a body made of carbon fiber composite with hexagon-shaped cutouts. Currently, it has a maximum wireless polling rate of 4000Hz, though Finalmouse has advertised it intends to increase this to 8000Hz in a future update. The Endgame Gear, on the other hand, is a wired-only model with a maximum polling rate of 8000Hz. It also has a solid plastic body without cutouts and feels better built overall. It falls just short of matching the sensor performance of the Finalmouse, but it has a slightly lower click latency.
Test Results
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