Affected Keyboard:
- Dell Pro Wireless Keyboard and Mouse - KM5221W
The Dell Pro Wireless Keyboard and Mouse - KM5221W uses one common USB wireless dongle for both the keyboard and mouse.
- When unboxing the KM5221W, look for the USB dongle label sticking out from the mouse (Figure 1).
![Mouse with USB dongle label](https://supportkb.dell.com/img/ka06P000000YGCzQAO/ka06P000000YGCzQAO_en_US_1.jpeg)
Figure 1: Mouse with USB dongle label
- Gently remove the mouse top cover and then locate the dongle (Figure 2).
![Removing the top cover reveals the USB dongle](https://supportkb.dell.com/img/ka06P000000YGCzQAO/ka06P000000YGCzQAO_en_US_2.jpeg)
Figure 2: Removing the top cover reveals the USB dongle
- Remove the USB dongle (Figure 3) from the dongle storage within the mouse.
![USB dongle](https://supportkb.dell.com/img/ka06P000000YGCzQAO/ka06P000000YGCzQAO_en_US_3.jpeg)
Figure 3: USB dongle
- Go to Support for Dell Pro Wireless Keyboard and Mouse KM5221W and reference the KM5221W Quick Setup Guide or the User Guide to complete the setup.