ASUS ROG Gladius II Origin – Intro

The ASUS ROG Gladius II Origin is an offering of about as many features as you could pack into a single gaming mouse. RGB customization and syncing, a high DPI sensor, replaceable cable, and replaceable switches round out the biggest features of one of ASUS’ flagship mice. With all of the fanciness crammed in, the price is sure to reflect that. Does the ROG Gladius II Origin deliver or is it just a case of too much?

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The ASUS ROG Gladius II Origin comes in the typical red and black colour scheme that’s expected from an ROG product. There’s no mistaking from the package that this mouse will satisfy your RGB desires in the best way possible.
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The accessories come in a little fabric pouch which is great to store the extras in while not using them. Included are a 2m braided cable with an ROG cable tie, 1m PVC coated cable, a beefy ROG logo, and the best feature of the whole mouse – two extra Omron D2F-01F switches! Personally, I find that the ability to easily swap switches, especially after being bitten by the dreaded double-click issue many times, is the best mouse idea in a long time. The weird thing though is that the switches in the mouse from the factory are different – Omron D2FC-F-K – and have a life of 50M clicks, where the D2F-01F are only rated at 1M clicks. Actuation force is also different between the two. Replacement switches are fairly cheap in the grand scheme of things, so if you prefer the D2FC-F-K you can pick up a pair of those instead.

A Closer Look
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Upon first glance you will notice that the ROG Gladius II Origin is a fairly large right-handed only design. This leads to a great feel in the hand, no matter what grip type you use, but alienates left-handed use. (If you’re looking for an ambidextrous design, ROG offers the Pugio mouse instead.) The grey finish is smooth throughout, with Mayan-inspired rubber side grips and scroll wheel. The side grips feel nice out of the box, but I have a feeling that those will be the first things to deteriorate with prolonged use. Located behind the scroll wheel is the DPI switch button which gives the ability to quickly change between two custom DPI settings.
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Moving to the left side of the ROG Gladius II Origin you have a pair of thumb buttons at your disposal. These are definitely nothing special on a mouse, but they do have a different shape to them than most other mice. The idea is that you slide to lift up on the buttons as a more natural transition from the grip rather than lifting your thumb to press the button. I wasn’t a huge fan of the thumb buttons’ design myself, however it wasn’t hard to get used to using. You also get a picture of the separated left/right mouse buttons, which have a very crisp feel to them upon actuation.
As a note: You may be wondering what is the difference between the ROG Gladius II Origin and the ROG Gladius II? The DPI target button that would be sitting in the middle of the left grip of the ROG Gladius II is missing on the Origin model. It’s just a temporary switch DPI switch that reverts back once you let go of the button. The ROG Gladius II Origin seems to shave 10 Canadian pesos off of the price of the ROG Gladius II, so that button is your deciding factor.
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Moving to the underside of the mouse there is the USB cable release latch, four covered screw holes for mouse disassembly and switch replacement, the PixArt PMW3360 optical sensor, and four fairly small feet that the mouse glides on. Despite the large size of the mouse it tends to work well with the minimal pad coverage. A good sign is that the lighting along the bottom edge nearly wraps the whole way around the mouse.

Performance and Lighting

The ROG Gladius II Origin is equipped with a PixArt PMW3360 sensor, boasting a whopping 12000 DPI, 250 IPS tracking, and 50Gs of acceleration. This sensor is used in a lot of high-end optical mice now and translates to consistent performance for even the harshest, lowest DPI, screen-crossing flicks. If you stick to under 2000 DPI you’ll stay away from any sort of jitter, but even at higher DPIs the jitter is barely noticeable if you’re not doing super precise work or competitive FPS. Liftoff distance is customizable, but default settings should work plenty fine for most people.

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The lighting features of the ROG Gladius II Origin are well executed and customizable in three separate zones – Scroll wheel, ROG logo, and the underglow. You have 4 brightness settings and full RGB colour control. Colours are vibrant and smooth, even when cycling through the RGB spectrum. I am a fan of purple myself and was able to select a nice deep purple without seeing any red or blue bleeding through.
If you are more invested in the ASUS ecosystem, you may be able to take advantage of Aura Sync to perfectly match up lighting between peripherals, video cards, motherboards, and other components.


The ROG Gladius II Origin not only promises a plethora of features, but delivers on them with ease. The sheer performance of the PixArt PMW3360 delivers an accurate and smooth experience across a wide variety of DPI settings and mouse pad surfaces. The large body works well for a palm, claw, or fingertip grip, with the rubber sides keeping your hand where it should be. The ability to replace switches without soldering is great for the long-term, but I do have worries about the longevity of the rubber grips. Lighting customization is about as good as you can ask for, especially if you can make use of ASUS Aura.
With the $90 USD price tag at the time of review, the price of the ROG Gladius II Origin can be a bit tough to swallow as you are definitely paying a premium over the competitors with similar specs. The unique ability to replace your switches should balance out the costs in the long run, as switch failure has been the #1 cause of mouse replacement personally.