You can determine if your for Logitechdevices are
Unifying by this logo:
Features:
One-to-many connection: One tiny receiver for up to six Unifying devices.
Plug it and leave it, then connect additional mice and keyboards to one computer.
Download Unifying software to quickly add all of your devices to one receiver.
Its convenient, clutter, advance 2.4 GHz technology.
For easy mobility and exceptional experience, keep a mouse-and-keyboard at work, at home and in your computer bag. They are always ready to use from only one USB port.
Compatible with the following models:
for Anywhere Mouse MX (M905)
for Performance Mouse MX (M950)
for Mouse M505, M510, M525, M305, M310, M315, M325, M345, M215, M185
for Couch Mouse M515
for Touch Mouse M600
for keyboard K230, K250, K270, K320, K340, K350
for Solar Keyboard K750, K800
for Desktop MK710, MK605
for Wave Combo MK550
for Combo MK520
for Number Pad N305
for Trackball M570
for MK330, MK270 etc.
Note:
Before using this receiver, please download and install
Unifying software:
//support.. com/en_us/software/unifying
Specification:
Type: Receiver for Unifying
Material: ABS, metal
Quantity: 1pcs
Item Color: As shown
Size: 1.4 * 1.8 * 0.6 cm / 0.5 * 0.7 * 0.2 " (L*W*H)
Net Weight: 2g / 0.07 oz
Package:
1*Receiver
You can determine if your Logitechdevices are
Unifying by this logo: