Weme via Amazon offers its Weme Mini DisplayPort DP to HDMI/VGA Converter Adapter Cable, model no. LYSB00NND5QTG-CMPTRACCS, for $12.99. Coupon code "6MPDWSGO" cuts it to $5.59. Plus, Prime members grab free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $8.) That's $7 off and the lowest total price we could find. Compatible with Thunderbolt, it supports video resolutions up to 1920x1200.