Weme via Amazon offers its Weme Mini DisplayPort DP to HDMI Adapter in White, model no. LYSB00NN20SW2, for $7.99. Coupon code "SWUWFO86" cuts that to $4.39. Plus, Prime members bag free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.) That's $4 off list and the lowest total price we could find. It features support for resolutions up to 1920x1080 (1080p).