The Corsair M65 RGB ULTRA WIRELESS is a heavy wireless gaming mouse with a right-handed shape and a thumb rest. It's well-suited for most hand sizes and all grip types. You can use it wirelessly via Bluetooth or its USB receiver, or you can use it wired with its rubber charging cable. It has three side buttons, including a dedicated sniper button and two dedicated CPI buttons behind the scroll wheel. Also, it has a gyroscope and accelerometer so you can perform mouse tilt gestures. Performance-wise, it has low click latency, a very low lift-off distance, and a very wide CPI range with a CPI that you can adjust very precisely in increments of one.
Note: Corsair revised the advertised polling rate of this mouse since we first tested it. See the Sensor Specifications section.
Our Verdict
The Corsair M65 RGB ULTRA WIRELESS is excellent for office use. It feels very well-built, and its right-handed shape is suitable for most hand sizes with any grip type. You can remap all its buttons, and you can also set macros using the iCUE software. You can use it wirelessly via Bluetooth or its USB receiver. Unfortunately, its scroll wheel lacks L/R tilt buttons and a free-scrolling mode.
- Connects via Bluetooth or USB receiver.
- USB receiver storage within mouse.
- Suitable for most hand sizes with any grip type.
- Many programmable buttons.
- Onboard memory.
- Scroll wheel lacks L/R tilt buttons and free-scrolling.
- Bulky; may not fit in laptop bags.
The Corsair M65 RGB ULTRA WIRELESS is very good for FPS gaming. It has low click latency over both a wired and USB receiver connection, a very low lift-off distance, and a very wide CPI range, with a CPI that you can adjust very precisely in increments of one. It feels very well-built, and it's suitable for most hand sizes with any grip type. Unfortunately, it's very heavy even in its lightest configuration, and its rubber cable isn't flexible.
- Low click latency.
- Precisely adjustable CPI in increments of one.
- Very low lift-off distance.
- USB receiver storage within mouse.
- Programmable tilt gestures.
- Onboard memory.
- Heavy.
- Rubber cable isn't flexible.
- Bulky; may not fit in laptop bags.
The Corsair M65 RGB ULTRA WIRELESS is great for MMO gaming. While it doesn't have as many side buttons as dedicated MMO mice, you can reprogram all buttons it does have, and you can program additional tilt inputs. It feels very well-built and has a right-handed shape that's well-suited for most hand sizes with any grip type. Performance-wise, it has low click latency, a very low lift-off distance, and a CPI you can adjust very precisely in increments of one within a very wide range. Unfortunately, its cable is rubber, and it isn't flexible.
- Low click latency.
- Precisely adjustable CPI in increments of one.
- Very low lift-off distance.
- USB receiver storage within mouse.
- Programmable tilt gestures.
- Onboard memory.
- Doesn't have as many buttons as dedicated MMO mice.
- Rubber cable isn't flexible.
- Bulky; may not fit in laptop bags.
- USB receiver storage within mouse.
- Onboard memory.
- Bulky; may not fit in laptop bags.
Changelog
- 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 Nov 26, 2024:
We've updated this review to reflect that this mouse now has a maximum polling rate of 1000Hz. See the Sensor Specifications for more information.
- Updated Jan 05, 2024: We've updated the CPI graph displayed in the Sensor Latency section of this review. Our results remain the same, but these graphs have two new columns with results from the Delay At Half Movement and Delay To End Of Movement tests.
- Updated Dec 07, 2023: We've converted this review to Test Bench 1.5. This update adds a new Main Button test group, which provides button actuation data and switch information. We've also made minor changes to how we calculate the Office usage score. For more details, you can see our full changelog here.
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Differences Between Sizes And Variants
The Corsair M65 RGB ULTRA WIRELESS is available in a black or white colorway. There's also a wired model of this mouse, the Corsair M65 RGB ULTRA, with a maximum polling rate of 8000Hz. We bought and tested the M65 RGB ULTRA WIRELESS in the black colorway, and you can see our unit's label here.
Popular Mouse Comparisons
The Corsair M65 RGB ULTRA WIRELESS is a very good wireless gaming mouse, and it's a continuation of the M65 lineup, which includes the Corsair M65 PRO RGB and the Corsair M65 RGB Elite. While it's much heavier than most recent gaming mice, it has a gyroscope and an accelerometer, which are fairly rare features. You can adjust its CPI in increments of one, which is more precise than most mice we've tested. However, it uses a rubber cable that isn't flexible, but you can always swap it out with a better one if you prefer.
See our recommendations for the best gaming mouse, the best wireless gaming mouse, and the best Corsair mouse.
The Corsair M65 RGB ULTRA WIRELESS and the Corsair DARKSTAR WIRELESS are wireless gaming mice with tilt gesture support. The M65 RGB ULTRA WIRELESS is slightly heavier and has better build quality. It has three programmable side buttons. On the other hand, the DARKSTAR WIRELESS has somewhat better gaming performance overall and better quality feet. It also offers more programmable buttons, including a six-button cluster on the left side of the mouse.
The Corsair M65 RGB Elite and the Corsair M65 RGB ULTRA WIRELESS are very similar mice, but the RGB Elite is wired-only while the RGB ULTRA WIRELESS also has wireless capabilities. The RGB ULTRA WIRELESS also has a lower lift-off distance, lower click latency, and it has a gyroscope and accelerometer within it that let you set functions to mouse tilts in any direction. Comparatively, the RGB Elite is slightly lighter and feels better built.
The Corsair DARK CORE RGB PRO and the Corsair M65 RGB ULTRA WIRELESS are both good wireless gaming mice. The M65 RGB ULTRA WIRELESS is lighter, and it comes with weights if you prefer heavier mice. It has a wider CPI range and a very low lift-off distance, as well as more programmable inputs thanks to its tilt gesture support. Also, while its charging cable is rubber, it feels more flexible and doesn't retain kinks like the DARK CORE RGB PRO's braided cable. On the other hand, the DARK CORE RGB PRO has lower click latency, and it's better suited for larger hands using a palm or claw grip.
The Corsair SABRE PRO is an excellent wired gaming mouse, while the Corsair M65 RGB ULTRA WIRELESS is a good wireless gaming mouse. The SABRE PRO is lighter, and it has a better quality cable that feels more flexible than the M65 RGB ULTRA WIRELESS's rubber cable. Also, it has a lower click latency, and its maximum polling rate is 8000Hz. On the other hand, you can use the M65 RGB ULTRA WIRELESS via Bluetooth or its USB receiver, and it has more programmable inputs since you can set tilt gesture commands.
Test Results
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