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HDMI Cables

Discover our commercial-grade HDMI cables for superior connectivity. Experience ultra-high speed performance with our 4K and 8K HDMI cables. Upgrade today.

8K 48G Ultra High Speed HDMI® Cables

KD-Pro8K3BX

KD-Pro8K3BX

3ft (0.9m) 8K 48Gbps Ultra High Speed HDMI Cable

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KD-Pro8K10BX

KD-Pro8K10BX

10ft (3m) 8K 48Gbps Ultra High Speed HDMI Cable

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KD-Pro8K6BX

KD-Pro8K6BX

6ft (1.8m) 8K 48Gbps Ultra High Speed HDMI Cable

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4K 60Hz 18G 444 Commercial-Grade HDMI Cables - CL3/FT4 Rated

KD-Pro16

KD-Pro16

16ft (4.9m) 4K 18Gbps HDMI Cable

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KD-Pro20

KD-Pro20

20ft (6.1m) 4K 18Gbps HDMI Cable

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Choosing an HDMI Cable

The cable is where many 4K and 8K systems fail, so a commercial-grade HDMI cable matters as much as the electronics. Key Digital HDMI cables are built and tested for full-bandwidth performance and are CL3/FT4 rated for in-wall installation, unlike typical consumer cables.

For 4K systems, the KD-Pro series (for example the KD-Pro16 at 16ft and KD-Pro20 at 20ft) carries the full 4K 60Hz 4:4:4 18Gbps signal. For 8K and high-frame-rate 4K, the Ultra High Speed KD-Pro8K series (KD-Pro8K3BX, KD-Pro8K6BX, KD-Pro8K10BX) supports 8K 48Gbps.

Choose by bandwidth (18Gbps for 4K, 48Gbps for 8K) and by length, and prefer a CL3/FT4 rated cable for any in-wall run. For distances beyond a passive cable, use a Key Digital active optical HDMI fiber cable or an HDMI over CAT6 extender. An authorized Key Digital dealer can match the cable to your resolution and run length.

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Frequently asked questions

What is the difference between an 18Gbps and a 48Gbps HDMI cable?

An 18Gbps HDMI cable carries full 4K 60Hz 4:4:4. A 48Gbps Ultra High Speed HDMI cable adds the bandwidth for 8K and high-frame-rate 4K. Match the cable to the resolution your system needs.

What does CL3/FT4 rated mean?

CL3 (US) and FT4 (Canada) are fire ratings that allow a cable to be run inside walls. Key Digital commercial-grade HDMI cables are CL3/FT4 rated for in-wall installation.

How long can an HDMI cable run?

Passive HDMI cables are reliable to roughly 15 to 20 feet at 4K. For longer runs, use a Key Digital active optical HDMI fiber cable or an HDMI over CAT6 extender instead of a passive copper cable.

Which cable do I need for 8K?

For 8K, use an Ultra High Speed 48Gbps HDMI cable such as the Key Digital KD-Pro8K series. An 18Gbps cable is sufficient for 4K 60Hz but not full 8K.