Review: G900 Chaos Spectrum professional grade gaming mouse




How important is your mouse in your PC budget? Seeing as it is the peripheral that gives you access to everything that your PC does, it should be pretty high on your list of things to spend money on. Unless you are using your machine for something heavily keyboard-only related, there is a good chance your hand of choice spends most of its life on your mouse. With Logitech’s G900 Chaos Spectrum, your hand is going to be comfortable.

When the mouse first arrived I was excited, then let down, then happy again. The ambidextrous design was missing something: mouse buttons where the thumb rusts for a left handed mouse user. Luckily Logitech made the soft rubber grips on the side of the mouse replaceable and you can slot the two buttons in the space where the grips were, everything held in place by strong magnets. So with the mouse having buttons in the right place, I got to work.

Besides being ambidextrous, the G900 is also a wired or wireless mouse, depending on your preference. As a wireless version you can choose the polling rate you want, from 125 Hz to 1,000 Hz, while DPI can be set between 200 and 12,000. Even with the lights on, the mouse’s battery lasts for 24 hours while in wireless mode, and it charges via the USB cable that also turns it into a wired option. This is handy for those who still want to use their devices even when they are charging, and at events where wireless devices are restricted, like the esports events that this device seems aimed at.


The G900 uses the PMW3366 optical sensor. The sensor doesn’t do any smoothing, filtering or acceleration and in the software you can tune the mouse to your specific mouse mat, depending on the surface type. Considering its hefty size the mouse is really light, weighing in at 107g. It feels well made and has none of those glued on rubber grips on the sides that many mouse manufacturers use for comfort. This mouse is made for hard work and spending a lot of time in your hand.

[toggle_simple title=”Technical specifications” width=”Width of toggle box”]

Resolution: 200 – 12,000 dpi
Max. acceleration: >40G*
Max. speed: >300 ips*

* Tested on Logitech G240 Gaming Mouse Pad

USB data format: 16 bits/axis
USB report rate: 1000 Hz (1ms)
Wireless report rate: 1000Hz (1ms)
Wireless technology: Custom 2.4GHz
Microprocessor: 32-bit ARM
Dynamic coefficient of friction:* 0.11 μ (k)*
Static coefficient of friction:* 0.17 μ (s)*

*Tested on wood-veneer desktop

Buttons (Left / Right): 20 million clicks
Feet: 250 kilometers
Battery Life
Default lighting: 24 hours
No lighting: 32 hours
Connection Type: Wired/Wireless
USB Protocol: USB 2.0
DPI (Min/Max): 200-12,000
USB Report Rate: 1ms
Sensor: PMW3366
Indicator Lights (LED): Yes, RGB
Buttons: 6-11
Other Features: Hyperfast scroll wheel, on-the-fly DPS adjustment, up to 5 onboard profiles
Physical specifications
Height: 130 mm (5.12 in)
Width: 67 mm (2.64 in)
Depth: 40 mm (1.57 in)
Weight: 107 g (3.80 oz ) mouse only
Cable Length (Power/Charging): 1.83 M (6 ft)


Normally when I use a mouse for review I play around with them for a day or two before packing them up again for the distributor to collect. With this mouse I tried to go back to my old mouse and after a few minutes I unpacked the G900 again and set it as my primary mouse and I will possibly shed a tear when they come to collect it and I am forced to go back. It just feels that comfortable thanks to its impressive height and solid construction. The buttons also have a satisfying click, both in feel and sound. It has become my work and World of Warcraft raid mouse and I have yet to have an uncomfortable moment with it.


  • Comfortable | Ambidextrous | Durable


  • Price is daunting to non-professional audience


Value - 8
Performance - 9
Features - 9
If it has the letters RPG in it, I am there. Still battling with balancing trying to play every single game that grabs my interest, getting 100% in a JRPG, and devoting time to my second home in Azeroth.

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