Logitech offers the Logitech MK550 Cordless Desktop Wave Keyboard / Mouse Combo in Black, model no. 920-002555, for $49.99. Coupon code "logi_mk550_11312" cuts it to $39.99. With free shipping, that's the lowest total price we could find by $15, although we saw it for $10 less after rebate on Cyber Monday. Sales tax is added where applicable. This ergonomic keyboard comes with a Logitech cordless laser mouse. Deal ends January 16.

Of note, this is a dented box item; while the packaging may be dented or scratched, the product itself is new with a full Logitech warranty.