This keyboard works great, feels good, quiet, is backlit, and is rechargeable (USB-C). It connects via Bluetooth so you don't need a dongle (although I believe you can use Logitech's newer Bolt - not the older Unifying Receiver). I bought it used and do not have the original box. It says it a Mac model, but I believe that mostly refers to the icons on the keyboard - it's worked great on my Windows PC.
I've decided I prefer the full keyboard with the number pad, so I'm replacing this one.