The RF dongle that comes with the desktop is a very simple USB connector which you can plug into your computer, tuck away, and forget about. There is not much to say about it except that it looks nice (not that you'll see it) and that is works perfectly. During typing and mousing there was no delay or lag of any kind and there was no connection problems until I was too far away to read off my 19" LCD screen. Logitech's engineers were smart enough to make the dongle thin so that another USB connection could be made in an adjecent port without any clearance issues.
This handsome piece is the mini-receiver desktop stand. In case you really were planning on taking advantage of the diNovo's portability and you did not want to reach around the back of your computer to grab the dongle you could use this. It is basically a nicely packaged USB extension which allows you to plug the dongle in it as opposed to directly into your computer. The mini-receiver is nice enough that it can be placed next to the diNovo keyboard and fit right in, so you won't have to hide it behind your monitor or a family picture the way you normally have to do with RF receivers.
Another strength of the diNovo's design is the keyboard's extra buttons. Logitech opted not to put in useless customizeable hot keys, which normally litter the tops of high-end cordless keyboards. Instead they added the two sets of media controls and the same panel of buttons above. These are the hot keys that people actually use, namely: Sleep, Home, Email, and Find. The hot keys, like "My Comp" and "My Doc" are cleverly positioned on the same keys F9-F12 and an F-Lock key is added to differentiate.
One thing the keyboard is lacking is LEDs to display the Num, Scroll, Caps, and F lock. I am sure some users will take issue with this but it makes so much sense that the only reason they other companies are not doing it is because the fear the wrath of an angry public who fears change. Not only is there no reason for these LEDs, but why have a shining green imperfection on a keyboard as nice as this just so you know your Caps Lock is on- won't you know as soon as you type? The lack of LEDs will also do a lot to conserve battery life. If you REALLY want to see if your locks are on, they are displayed on the desktop receiver.
At a closer look you can see that Logitech has *gasp* done away with the Scroll and Num locks. Again, this makes sense as the number is its own entity so a number lock would not be reasonable and because Scroll lock is totally antiquated. Logitech did choose to hold on to the Insert key, even though this one is slowly going the way of the buffalo, as the saying goes.