Usb Receiver For Logitech Mk270/mk260/mk220/mk345/mk240/mk235 Keyboard Mouse - Mice & Keyboards Accessories - AliExpress
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
Logitech Wireless Keyboard and Mouse Combo for Windows, 2.4 GHz Wireless, Compact Mouse, 8 Multimedia and Shortcut Keys, 2-Year Battery Life, for PC, Laptop - Walmart.com