USB Unifying Receiver 2.4 GHz Wireless Technology - Black | USB plug, works with all Unifying compatible devices like wireless mouse and keyboard, PC, Mac, Laptop

It is NOT plug and play... You need to download an app from Logitech to program the receiver. I was worried because two of the devices I need to attach these too are NOT type devices, but a DVR for our security cameras. I have 2 DVRs and a computer, each requires a mouse. I wanted to get rid of all 3 wired mice so I bought a Logitech mouse that can done devices using a switch on the mouse. (Model M720, if anyone needs similar.) Unfortunately the mouse took a week longer to arrive than the reciever so I had anxiety er whether this would actually work. The mouse already comes with one receiver and can do Bluetooth (which I did for the computer), and I bought this receiver for the 3rd device. I bought the mouse refurbished because new was retailing at $50+. I received the extra receiver first because shipping was longer for the mouse. This made me nervous because the receiver came with no instructions in the box. The outside has a QR code to use so you can download the necessary software. You MIGHT get a link that says the old advertised software is no longer supported and is obsolete. Ignore this. Download the recommended software that they suggest as the substitute. I just went strait to Logitech's support and typed in unifying receiver. You DO need a computer for this part because once the software is installed you use it to program the receiver and pair it with a device. Once the mouse came in with its included receiver it worked instantly when I plugged it into the 1st DVR. I had to use my old wired mouse to link the new mouse via Bluetooth. This is when I realized I needed to download the software to program this extra receiver... Which is slightly different in design from the receiver that came with the mouse. Both have the same logo, but one has a thinner profile and sticks out less from the USB slot. I plugged this receiver into my computer once the software finished downloading and it was super easy to pair it to the mouse. I then unplugged the receiver from my computer and plugged it into the 2nd DVR and it worked. I now have 1 mouse that controls 3 devices and there is less clutter on my desk.

I used this for my M570 Track Ball Mouse. The original one got damaged because I had left it in the computer and it kinda got bent and was never the same since then. I had downloaded the Logi Options+ the night before. When it arrived I opened the app. I clicked Add Device. I then inserted the USB into the computer. Then it asked me to turn the mouse off and then on and it connected. Super easy no problem at all for me. Yes I would recommend this product.

If you bought this unifying receiver or if you are considering buying it you need to know that you need to download and install the Logitech unifying receiver software. Then, use it to pair your mouse and/or other Logitech wireless devices. Don't be a dummy like me and just plug it in and expect it to work and then, when it doesn't, write a very negative wrongful review. I apologize for that. After I figured out that you need to install the software then use it to pair your device (in my case it was my Logitech M325 mouse) with this receiver it should work great. So far so good for working with my Logitech M325 mouse. I just figured this out today so if things change later on I will update this review. This dongle is a little hard to remove from the USB port but that may be because I have very short fingernails out of necessity as I am an HVAC mechanic.

I received this usb. Excited that finally I can connect all my stuff. Unfortunately it didnt work. Not sure if it was faulty. But if it sounds to good to be true it probably isn't what your going to get.

For several months I used Bluetooth with my ERGO K860 keyboard and MX Vertical Mouse . It was OK, but every time I put in new batteries it would go through what I call a learning phase. Always having to reconnect and during that reconnect I could not type for roughly 5-10 seconds. At times it would disconnect after just 10 seconds or so of not typing. Which meant when I wanted to type again I had to wait. I lost or threw out both of the unifiers that came with the keyboard and mouse thinking bluetooth would be fine with my Ubuntu 20.04 OS. I was wrong and after several months I didn't get used to the constant reconnect, but instead was getting more annoyed. So I thought I would buy this Unifying Receiver hoping it would work even just a little better. In comparison it is working wonders. Even when the keyboard indicator lights come on that it's reconnecting I can type. It also keeps up with my typing a lot better than bluetooth did for me. My conclusion is if you have a Linux OS like my Ubuntu 20.04 and using bluetooth because you lost this device then buy one it is 100% worth it. Also I installed Solaar which is simple and very easy to use with this unifying receiver.

I don't think my keyboard was listed but paired just fine with a k400r. So product itself is fine The downside is that the pairing requires software not made for linux. So best to have a windows machine or try someones homemade software.

When I purchased a new mouse, I had a brain cramp and discarded the packaging with the receiver in it. I’m pleased that this is sold separately because it’s such a small part and I would imagine I’m not the only one who has ever lost one. Lol! It works like a charm.

I absolutely love my Logitech K350 keyboard, but lost the dongle when I moved. Logitech doesn’t produce it anymore, so people are selling it online for hundreds of dollars. I had almost given up when I stumbled on this. This is a lifesaver!

Had to buy it separately from compatible hardware good to have the ability to buy replacement receivers in case one gets lost

ótimo. funcionou perfeitamente após baixar os drivers da LOGI

Works great. Remember this isn't plug and play. You need to go to the Logitech website to pair your device to the dongle. If you have a Mac there are some extra (kinda annoying) security sets you have to do, but it walks you through it. Was able to pair an old MX Performance mouse to a MacBook Pro.

Perfect! Works well, easy to install with the app (literally less than 5 minutes) 👍🏻👍🏻👍🏻

with my wireless logi keyboard. works nicely