StarTech.com Displayport to HDMI Adapter - 4K30 - DPCP & HDCP - DisplayPort 1.2 to HDMI 1.4 - Apple HDMI Adapter (DP2HD4KADAP) - adapter - DisplayPort / HDMI

This DisplayPort to HDMI adapter supports 4K video resolution, enabling you to connect DisplayPort devices, such as an Ultrabook or desktop computer, to a 4K HDMI display or projector.
You will be amazed at how this adapter flawlessly manages your graphics-intensive content. With support for resolutions up to 4K - four times the resolution of high-definition 1080p - its lossless performance makes the adapter the ideal solution for high-resource applications such as graphic design, CAD & CAM design, or health care imaging (MRI, radiology diagnostics, etc.).
Plus, the 4K adapter supports 1080p displays, which makes it a great accessory for home, office or other workspace applications.
This DP to HDMI adapter is extremely portable, with a lightweight, small-footprint design. It's the perfect accessory to carry with your Ultrabook, fitting easily into your laptop bag or carrying case. Its ultra-portable design makes the adapter ideal for BYOD (Bring Your Own Device) applications at the office, and enables you to arrive prepared when you're presenting to a potential client, teaching off-site, or traveling to meet with a customer.