The Logitech® Unifying receiver is a wireless USB dongle that can drive multiple Unifying-enabled devices like keyboards and mice.
A Logitech® Unifying receiver is a tiny, USB receiver that can be paired to at most six devices like keyboards and mice. Fully support for these devices was added in Linux 3.2 which shipped with Ubuntu 12.04 Precise Pangolin.
This tag can be used whenever you have issues with a device using this technology. Although the Logitech nano receiver is not exactly the same as a Unifying receiver, feel free to tag such questions as logitech-unifying too as they have many similarities. (they also share the same kernel driver, hid-logitech-dj
).
For a marketing talk about this technology, visit http://www.logitech.com/promotions/6072.