Yugster offers the refurbished Monster Cable Swivel HDMI Adapter for free plus $5 for shipping. That's $9 under the lowest total price we could find for a new one. It features a 180° swivel and 24K gold contacts, which purport to maximize signal integrity.
Note: No warranty information is included, and all sales are final. The countdown timer on the product page does not reflect an actual expiration time and resets daily.