Amazon.com : Original Replacement USB Receiver for Logitech Wireless Presenter R400 and R800 : Office Products
Logitech R400 Wireless Presentation Remote Clicker with Red Laser Poin – JG Superstore
Logitech USB Unifying Receiver 910-005235 B&H Photo Video
Amazon.com: Logitech Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with 50 ft Red Laser Pointer 910-001356 : Electronics
Unifying Usb Adapter Wireless Dongle Receiver For Logitech Mouse Keyboard Connect 6 Device For M905 M950 M505 M510 M5 - Mice & Keyboards Accessories - AliExpress
Logitech USB Unifying Wireless Receiver (910-005235) - Walmart.com