Coming from my daily driver at work, the SK630 took me no time at all to get used to the SK621. Like the number pad on full-size keyboards, I rarely use the top 12 function keys so a 60% keyboard is perfect for my needs. If you are coming off a normal profiled keyboard, it will take some getting used to with the SK621 flatter keycaps. When I first transitioned to Cooler Master’s low-profile keyboard, it took a few sessions to get used to and it took about a week until I stopped hitting incorrect keys. What I really love about the SK621 (and other SK keyboards in the lineup) is they’re much easier on my wrist than normal keyboards and as an added bonus, I don’t have to sacrifice my Cherry MX red switches.
When putting the SK621 through its paces, it was flawless in both wired and wireless mode. After using it as my daily driver for a few days in wired mode I removed the cable and turned on the wireless mode. Since the SK621 doesn’t come with a Bluetooth USB dongle, your PC will already need to be Bluetooth capable. Pairing the SK621 was extremely easy by putting it in discover mode holding the function key and either Z, X, or C down for three seconds. Once in discovery mode, the indicator light on the caps lock key starts blinking blue and the keyboard showed up in the Bluetooth list of devices as “CM BT Keyboard-1”. Since the SK621 can pair with up to three devices if you used the X or C key you would see “CM BT Keyboard-2” or “CM BT Keyboard-3” in the Bluetooth list. Once paired, I was able to use the SK621 for the full day even with the RGB turned on. Looking at the SK621 documentation it will last up to 15 hours with the RGB on and 4-5 months if the LEDs are off.
After all my testing I was thoroughly impressed with how the SK621 performed in both wired/wireless mode. Also, with the SK621’s small footprint and Bluetooth connectivity, it’s perfect for pairing with your mobile device or tablet on the road.