Cooler Master introduced several new color schemes of its MasterKeys MK770 and CK721 mechanical gaming keyboards at the 2023 International CES. The MK770 has a unique 99-key layout that retains the Numpad, squeezes the arrow keys between the main QWERTY key-cluster and the Numpad, and relocates the insert/delete/home/end/page-up/page-down cluster. This is essentially a full-size keyboard, but only 38 cm in length (comparable to some TKL keyboards). The MK770 supports three kinds of connectivity—USB (including type-C), wireless over Bluetooth 5.1, or wireless over a low-latency proprietary 2.4 GHz RF.
The MK770 comes with hot-swappable Kailh Box V2 mechanical switches, a gasket mounted construction, PBT doubleshot keycaps with four distinct colors per color-set; and pre-lubed stabilizers for the keycaps. You get individual-key RGB lighting, a multi-function customizable wheel, and a 4000 mAh battery (the company didn't mention battery life on a full charge). In the USB and 2.4 GHz RF mode, the keyboard offers a 1000 Hz interface polling-rate, which drops down to 125 Hz in Bluetooth mode. A 512 KB onboard memory stores lighting and macro data. The four color sets the MK770 are offered in are: cyan+magenta+gray; mint-green+forest green+off-white; an Attack on Titan theme; and Fruity Pebbles theme. The CK721 Sakura Limited Edition is a 65% format mechanical gaming keyboard that uses TTC mechanical switches, PBT doubleshot keycaps, a 3-way digital dial, RGB lighting for each key, and triple interface just like MK770 (USB, Bluetooth, and 2.4 GHz RF). A 2,000 mAh battery provides up to 73 hours of use without lighting.