Dell Small Business offers its Dell Thunderbolt TB16 Dock for $279.99. Coupon code "BUSINESS35" cuts that to $194.99. With free shipping, that's the lowest price we could find by $39. It includes a 240-watt adapter and features two USB ports, three USB 3.0 ports, a Thunderbolt 3 port, HDMI and VGA video inputs, Gigabit Ethernet, and audio jack. Deal ends May 31.