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CM Storm QuickFire Pro

CM Storm Quick Fire Pro Mechanical Keyboard Review

  1. Introduction
  2. Packaging and Specification
  3. Closer Look
  4. 6KRO/NKRO testing and User Experience
  5. Conclusion
  6. View All

6KRO/NKRO testing and Initial Impressions

Since I type a lot, I did not feel any difference in polling rate, even while gaming. Few companies have started emphasizing on 1000Hz/1ms polling rate. while its known to make a difference in a gaming mouse, I didn’t find anything special in having polling rates as an option. Its also well known that higher polling rates use more CPU time. Also, in USB mode typically you can use up to 6KRO. Its only in the PS/2 pin. I am partially disappointed that motherboard manufacturers in certain higher end boards – especially gaming motherboard manufacturers- are ditching the PS/2 pin, even the keyboard/mouse PS/2 pin connector. Even if one says that CPU usage is “minor”, PS/2 pin has the advantage of NKRO- and there’s no polling rate via PS/2 pin. You do lose a USB port, but on the bright side, USB lets you install the keyboard/hot-swap. PS/2, unfortunately, requires you to restart if you’re switching between keyboards.

SteelSeries, another company that makes gaming hardware, says so clearly in their 6G V2’s product page:

“We absolutely recommend using the PS/2 connector when possible. First, it will give you total freedom with no limit to the amount of simultaneous key presses. And, equally as important, using the PS/2 may just improve your overall gaming experience. The reason is that when you use a USB keyboard your computer is actually using CPU time polling your keyboard. The higher the polling rate the more CPU time is used to perform the polling. And because of the built-in debounce rate found on any quality keyboard, any polling rate above 200Hz is simply a waste of CPU time and really just a result of pointless marketing hype. Unlike USB keyboards a PS/2 keyboard isn’t polled at all. The keyboard simply sends a signal to the computer as key presses are made, which causes a hardware interrupt, forcing the CPU to register the signal.”

But going by the article above and after reading few guides that you find while Quick Pro doesn’t come with a USB-to-PS/2 adapter- so does Full NKRO REALLY work in USB mode after enabling it?

The following screenshots are taken at 4MS polling rate and with NKRO enabled:

CMStorm QuickFire Pro NKRO test

CMStorm QuickFire Pro NKRO test2

CMStorm QuickFire Pro NKRO test3

NKRO does work in USB mode. Not that I’ve doubted from Coolermaster, and I was told being told that there’s probably one more mechanical keyboard that does the same, but this is the first time I am seeing a mechanical keyboard with Full NKRO support via USB. I’ve asked Coolermaster the usual “How did you do that?” question. I didn’t get a reply yet, but I’ll post the update here.

Since the 6+ keystrokes are getting registered at the same time, it shouldn’t be a surprise that some of the most common keystroke combos pass with flying colours:

Edit: Coolermaster said that Quick Fire Pro is able to support NKRO in USB mode because we did this via the Firmware.

CMStorm QuickFire Pro ARROWCMStorm QuickFire Pro asx

CMStorm QuickFire Pro CTRL-AQCMStorm QuickFire Pro ESDF

CMStorm QuickFire Pro SDCCMStorm QuickFire Pro waq

CMStorm QuickFire Pro wde

Even after restarts and shutdowns, the board does remember the previous Key Rollover.

3 comments

  1. its weird that cm didn’t see that cable folding when they designed this board. thats why i prefer plastic insulation over threaded wrapping because eventually the threads come out. plastic on the other hand protects the cable properly even if you bend it hard. i hope the cable is also covered under warranty as some companies do not do that. but why have a removable cable in the first place?

    i think steelseries are the first guys to do full NKRO support via USB, not completely sure though. but one of the reviewers in another site said that microsoft released some update that lets you use NKRO via USB which didn’t make sense. any clarification on that part?

  2. why would anyone pick such an expensive keyboard? okay so the keys develop a shine, but to be honest i don’t see the point not to choose something like tvs gold.

  3. arey have you pressed the keys asx together and see if it works? if not then that is your answer. think logically. sidewinder x6 costs 2 thousand and a membrane keyboard steelseries merc itself costs 3k+, so considering all that this will actually cost 5 thousand since the price listed above if 6 thousand 5 hundred. tvs gold doenst even haz certain compatibility with certain keystrokes, let alone 6kro. ur tvs gold haz backlit? i think not.

    now if you question why is mechanical board is expensive, you need to google and check wat is the difference between mechanical and membrane keyboards. you want to buy cheap 3rd class stuff and play then wonder why certain key combinations dontz work then sux to b u!!!

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