C-U0007 Unifying USB Receiver for Mouse and Keyboard, Connects up to 6 Devices

This USB receiver worked perfectly! It connected my keyboard just as it was supposed to and was super simple to set up! No more small laptop keyboard for me!

Lost my keyboard receiver when I left it on a remote computer. Ordered this replacement after confirming on the Logitech website that it would work with my K400+ keyboard and trackpad. Received dongle and plugged-in. It did not work right out of the box. I read the very tiny info sheets that came with the receiver to no avail. Finally Googled and went to the Logitech website. For a Mac computer, you can program the receiver via software that you can download. I really wish Logitech had better instructions with the receiver and on their website. But, in the end works great - even at 1/2 the cost of a new keyboard, lol.

This did not work at all for my Logitech keyboard/mouse combo. Receiver head is shorter than the one that came with my combo. Worse yet, this item isn’t eligible for return “for health and safety reasons”. Seriously? How about mentioning that in the item description? Frustrating. I guess “universal” doesn’t mean universal.

I somehow misplaced the USB dongle for my Logitech K350 keyboard. Funny because I put a note on the original box which aparently reminds me of where the original actually is, but I can't read my own writing! This replacement worked fine and it will also accept certain models of their wireless mice. Carrying the Unifying certification, I would think it would work with all their USB input products, as well as those of other manufacturer's. It's not mentioned in the instructions but I would be interested in knowing. BTW a warning. Windows 10 update has affected some systems; the keyboards have slow response. You litterally have to hold a key down for some 3-5 seconds before you get a response. I spent time researching this and apparently the most likely cause has to do with the EASE OF ACCESS section of your Control Panel. If you don't use the fully itemized version of Control Panel, select Control Panel and then from the old, normal control panel screen, go up to the file name and click the right arrow or down arrow that follows "Control Panel." If there is no arrow next to the name, just click on the name Control Panel at top and one will appear. Then select All Control Panel Items. You will now see a list of some 25 individual items rather than the old screen which has about six main categories. Now select Ease of Access, then "Make Keyboard Easier to Use." You will find a category regarding Filter Keys. It will read Turn On Filter Keys. If it is checked as being ON, uncheck the box. You don't want the filter keys on because that is the usual problem of having the slow response from the keyboard. Oh, one warning. Hit Apply. I forgot to and wasted another half hour trying to find a solution in the Registry which didn't work. I went back to Ease of Access and found the filters still being checked as ON. After trying three wired keyboards and one wireless without success, this was quite a good feeling!! If this isn't your problem, and you've already replugged in your USB cable, you are probably going to end up in the registry which is a place of last resort. I have no idea how the filter key got turned on but there is a suggestion that it may have to do with a Windows update. This seems to go back to Windows 7, but I have had Windows 10 for more than a year.

Works fine. Pairing multiple devices and switching between them is good. The box is half English, half Chinese, but the instructions are completely in Chinese with no English version included. Not tailored for the US market. Knocked off a star for that, but the product itself does what it's supposed to do.

Worked perfectly when I downloaded the Logitech unifying software.

Perfect use, easy, good quality. NO moving parts, so it should last forever. Tiny, no real lag time, fully functional plug and play.

This will not work for a Logitech mouse. It is smaller than the one I wanted to replace. Cannot be returned. All instructions and wording on packaging is in Chinese. Don’t waste your money and buy it. There is no return on this item. Worst purchase I have ever made on Amazon, highly disappointed.

Great device, but need to find the right location to download the application, the link given does not exist.

Working fine. It did not come in Logitech packing so that seems to be a drawback although it seems to be a genuine product. Had to download a software from logitech website and it immediately recognized my wireless keyboard. Essentially i had to buy this because i seem to have misplaced the wireless receiver for my KBD. Since it support up to 6 devices it might be helpful in avoiding a clutter with other logitech wireless devices I may use.

compatible with Logitech devices that use the Unifying receiver - my MX Master keyboard and MX 2 mouse. NOT the newer Bolt devices. Lets me use my mouse and keyboard on two devices.

Llegó un día antes. Solo hay que ir a la página de Logitech y bajar la aplicación Logi option+ y listo. Fue fácil y ya estoy cómodo con el uso. Lo recomiendo, muy buena opcion

Works well. Easy to pair.