Stay comfortable all day long with this Logitech wireless keyboard and mouse set. The keyboard is ergonomically designed so that you can rest your wrists and reduce the effects of RSI, and both the keyboard and mouse connect using the same USB port. Effortless functionality is at your fingertips with this Logitech wireless keyboard and mouse set.
A: Keyboard is the same (Wireless K350), but MK550 has wireless mouse M510, while MK570 has wireless mouse M705. However nobody else seems to be selling MK570 and even Logitech website doesn't list it. I called Logitech and their first level support didn't know about MK570, second level support speculated MK570 wasn't meant for US region and just Best Buy was selling it here. I have tried both MK550 and MK570 but the Logitech keyboard quality has really gone down (it makes jarring noises when its supposed to be "whisper quiet". I have used the same keyboard before and that didn't have this noise problem so it seems to be a recent quality issue which Logitech support had no idea about.
Q: Does the Keyboard have a Caps on Light / Indicator?
A: No it does not, but you can see the staus in your start bar.
Q: I have the Logitech M570 wireless keyboard & mouse. How do I know when the caps lock is on?
A: no indicator on keyboard
A: The small USB receiver needs to be plugged into your computer. However, it doesn't need to be plugged into the extender cable that came with it. The only exception I can think of is if the USB port you are using is on the far side of your computer and the computer or something is between the SUB port and the mouse/keyboard. In those cases, you might need to plug the receiver into the cable and the cable into the USB port so you can place the receiver closer to the mouse/keyboard. Or plug the receiver into a USB port on the front (if it's a desktop PC).
A: No it does not it is very basic
Q: Is there a place to store the dongle when not in use?
A: Yes, it does. In the mouse's batteries compartment.
Q: Is this compatible with mac desktop?
A: I have a IMac and it works great!
A: I think you can pair it with another dongle because it is part of that unifying technology stuff. So that you can use the same mouse and keyboard with multiple systems.