Kptec via Amazon offers its Kptec 4-in-1 USB Type-C Multiport Adapter for $36.99. Coupon code "74SOWKLT" drops that to $19.97. With free shipping, that's $17 off and the lowest price we could find. It features HDMI, DVI, VGA, and DisplayPort outputs and lets you connect a laptop or other USB-C device to an external monitor. Deal ends April 29.