Logitech C-U0007 Unifying receiver for mouse and keyboard works with any Logitech product that display the Unifying Logo (orange star, connects up to 6 devices) Logitech Unifying receiver for mouse and keyboard with Unifying Logo The unifying receiver working with 6 mice and keyboards in the same time. Will work with any product that has the Unifying Logo (orange star) on them. Compatible with: Logitech wireless mouse M505 Marathon Mouse M705 Logitech Mouse M905 Logitech keyboard K340 Logitech keyboard K350 And also with Logitech Notebook Kit MK605 Logitech mouse M215