HyperX’s biggest selling point for the Plus Fire Saga Pro is modularity—and for once, the marketing matches the reality. The Saga Pro offers 16 different mouse body configurations via interchangeable magnetic parts, allowing you to pop off the shell, change the primary buttons, and change the side grips. Everything clicks into place magnetically without tools. Plus, the magnets hold so tightly that nothing shifts during gameplay, even when you’re flicking aggressively in the shooter.
In the box, you get duplicates of every modular component: two shells, two sets of button covers, and two pairs of side buttons. A shell sits a little higher, with a more pronounced hump. A button set adds subtle texture. The side buttons come in different heights. The idea is to mix and match to find your perfect fit.

(Credit: Joseph Maldonado)

(Credit: Joseph Maldonado)
Here’s the catch, though: I’ve found that the differences are so subtle that most people won’t care. Unless you’re super particular about palm contour, I found the out-of-the-box options felt similar enough to make this feature more of a gimmick than a game changer.

(Credit: Joseph Maldonado)
If you have a 3D printer, the actual modular value is displayed. HyperX offers open-source models at Printables.com that you can download and output at home to further mod your mouse. You can even play with the design to create really custom looks. It’s legitimately cool — for a small percentage of gamers motivated enough, And With access to a 3D printer. For everyone else, it’s an interesting idea that you’ll never pursue.

(Credit: Joseph Maldonado)
Another problem is that the Saga Pro weighs 72 grams (2.54 ounces) — not at all light by modern standards. The Razer Viper V3 Pro tips the scales at 54 grams, and HyperX’s own Plus Fire Heist 2 Pro only tips the scales at 61 grams. The Saga Pro’s modular bits add mass, and you feel it when you’re moving fast.
In my mitt, the right-hand shape works quite well for claw and finger grips. Palm grippers get plenty of support, though the fairly flat profile won’t accommodate large hands. I also found the build quality to be solid, with no flex or creasing. The matte black finish provides a decent amount of grip, and HyperX throws in grip tape if you want more traction.
