Newegg offers the refurbished Razer BlackWidow Expert 2014 Wired Mechanical Gaming Keyboard in Black, model no. RZ03-00392800, for $59.99 with free shipping. That's $20 under the best price we could find for a new one. It features five user-definable macro keys, 10-key rollover, Razer mechanical gaming switches, USB passthrough, and audio-out and mic-in jacks.
Note: A 90-day warranty applies, but it is unclear who backs it.