There’s a bunch of functions on the Ducky One TKL itself, particularly on how seriously complex it can get, and the Ducky One TKL can do that entire without the need of a software to control everything. You are going to need the manual to do these, so keep that manual somewhere handy!
There are certain settings that you can configure other than the preset FN+F1 to F12 and FN+arrow keys functions, like the USB acceleration rate, cycle through the 6 different backlight mode (in this case, this keyboard does have backlight) while varying the brightness and speed independently. Another very speacial but complicated feature is the recording of customized LED zones, so everyone can manipulate the backlight to however you like it personally. I do wish that Ducky provided a separate software to control the backlighting of the Ducky One TKL using a computer instead of being 100% independent, since a graphical user interface can simplify things a whole lot more.
The DIP switches as mentioned before are pretty important for me on a mechanical keyboard, as there are many keyboards that neglects important keys – like the Menu key (holds true for Keyboard Master Race people) – which I use a lot while typing or general navigation through the computer.
The DIP switch on the Ducky One TKL is a funny one – at first when I got it, none of the settings worked. To my surprise, the first result when I Googled into this matter was a link to Ducky Channel’s list of software updates (which I think is crucial for peripherals these days) for their various keyboards. I quickly downloaded the firmware updater for the specific Ducky One TKL model and BAM!!! – the DIP switches worked perfectly.
The configuration that I have the Ducky One TKL set on is rather inconvenient for some, but I like it. I got my FN key changed to the Menu key by default, but whenever I want to tweak the lighting effect, I have to modify the DIP switch to do that. A little hassle, but I never actually fiddled around with the lighting mode again after tweaking the brightness level twice.
One last feature that I find rather funny but ended up using quite a bit is the mouse function. On this Ducky One TKL keyboard, hitting FN+Scroll Lock will change the navigation keys (the 6 keys above the arrow keys) to mimic a mouse’s movements and clicks, with scroll wheel up and down being mimicked by Pause Break and Print Screen keys respectively. Very nice feature, especially for those who want to scroll through pages and pages of documents with speed, and using a keyboard only.