For 4k at 60Hz, you'd need HDMI 2.0 or DP 1.2. At those speeds, both kinds of cable should be able to reach 25 feet, and I can find reputable brands selling bo

For 4k at 60Hz, you'd need HDMI 2.0 or DP 1.2. At those speeds, both kinds of cable should be able to reach 25 feet, and I can find reputable brands selling both kinds at the length.