Just in case you need a long cable to connect to your 4K display using HDMI, you can consider the Hama 10m High Speed HDMI Cable. This 10 m / 32.8 ft cable claims on its packaging to support 4K Ultra HD, 3D and 10.2 Gb/s HDMI output with Ethernet.
Using the GRL DI20 cable tester to test the insertion loss (IL) through the Hama 10m High Speed HDMI Cable, we can see the cable has much lower overall signal integrity performance when compared to the Monoprice Certified Premium HDMI Cable (30 ft) even though they are almost the same length. The Hama 10m High Speed HDMI Cable also has higher loss under 10 GHz compared to the Monoprice Certified Premium HDMI Cable (30 ft).
Here's a quick look at the Hama 10m High Speed HDMI Cable after purchase.
Hama advertises that the gold plated connector design and ferrite core materials used by its 10m High Speed HDMI Cable can enable high quality and secure signal transmission when connected in between devices.