Review on 🔌 Logitech USB Unifying Receiver, Wireless Technology at 2.4 GHz, USB Plug Compatible with all Logitech Unifying Devices such as Wireless Mouse and Keyboard, for PC/Mac/Laptop - Black by Kevin Woods

This item does not work on 2 different computers, one with Windows XP and one with Windows 10 Pro. This device also does not work with either of the two differently functioning Logitech k400 keyboards, although this model's keyboard is listed as compatible with this 'unifying device'. Revain's policy is that this device is non-refundable under any circumstances, so in the end this item is utterly useless and a waste of money. willing to lose all the money you could spend on buying it.