The "tenkeyless" design forgoes the seldom used traditional numpad, thus saving horizontal space on crowded desks and allows for larger gaming mousepads.
When using the USB connector, it allows up to 5 keys to be actuated simultaneously. Cooler Master claims that it should be able to do NKRO in PS/2 mode (we didn't test that).
During subjective testing, we liked the feel and acoustics of the keyboard (over the noisy Cherry Blue based Razer BlackWidow Ultimate and the Cherry MX Black based SteelSeries 6G). In an intense CS:Source match and when typing this article, we did not notice any input lag or layout obtuseness (shortened right shift keys are the devil's work). One feature lacking that we would have liked is LED lights for typing in the dark.
At SGD$145/USD$79.99, it is one of the most value for money mechanical keyboard in the market. The "tenkeyless" design offers more table space for larger mousepads, something that professional gamers with large mousepads and users with cluttered desktops will appreciate. Cooler Master also sells 3 more versions of the Quick Fire Rapid – with blue, brown and black switches to cater for users with different needs and deviant desires.
I know I would be using this for my extended Battlefield 3 domination sessions…