Logitech MK540 Advanced wireless keyboard and mouse review: Snappy typing, no noise | PCWorld
Amazon.com: Logitech MK540 Advanced Wireless Keyboard Full Size for Windows Keyboard and Mouse, Long Battery Life, Caps Lock Indicator Light, Hot Keys : Electronics
Logitech MK540 Wireless Keyboard Mouse Combo - USB Wireless RF Keyboard - Black - USB Wireless RF Mouse - Optical - 1000 dpi - 3 Button - Scroll Wheel - QWERTY - Black - Newegg.com
Logitech MK540 Full-size Advanced Wireless Scissor Keyboard and Mouse Bundle Black 920-008671 - Best Buy
Logitech MK540 Wireless Keyboard and Mouse Combo. 2.4 GHz Frequency/30 Feet Wireless Range, Black