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Instruction Manual — 8K Ultra High Speed HDMI® Cable

This manual covers setup and features for the Satechi 8K Ultra High Speed HDMI® Cable (Model: ST-8KHC2MM).

📄 Download User Manual — 8K Ultra High Speed HDMI® Cable · PDF · 1.5 MB

In the Box

8K Ultra High Speed HDMI® Cable, User Manual.

Specifications

Model: ST-8KHC2MM
Cable Standard: HDMI 2.1
Bandwidth: Up to 48 Gbps
Maximum Resolution: 8K/60Hz (requires HDMI 2.1 host and 8K display)
Supported Resolutions: 8K/60Hz · 4K/120Hz · 4K/100Hz · 4K/60Hz · 4K/30Hz · 1080p/120Hz
Mac Maximum: 4K/60Hz
Audio: Dolby TrueHD, Dolby Atmos, DTS:X, Master Audio, eARC
HDR: Static and dynamic HDR supported

Parts Reference

1. HDMI Video Input/Output (Up to 8K/60Hz) — HDMI 2.1 connector at the device end of the cable. Plug this into the HDMI 2.1 port on your computer, game console, or media device.
2. Durable Braided Cable — The nylon-braided cable body, designed for durability and flexibility.
3. HDMI Video Input/Output (Up to 8K/60Hz) — HDMI 2.1 connector at the display end of the cable. Plug this into the HDMI 2.1 port on your external monitor or TV.

Setup

Step 1: Connect one HDMI end (Port 1) to the HDMI 2.1 port on your device (computer, game console, or media player).
Step 2: Connect the other HDMI end (Port 3) to the HDMI port on your external monitor or TV.
Step 3: On your display, switch the input to HDMI and begin streaming or using your device.

Important Notes

8K resolution requires HDMI 2.1 hardware on both ends: To achieve 8K resolution, your host device must have an HDMI 2.1 port and an 8K-capable GPU. The external monitor must also support 8K resolution. Connecting to devices without HDMI 2.1 will result in lower output resolutions.

Mac devices are limited to 4K/60Hz: Due to macOS limitations, Mac computers are limited to 4K/60Hz output via this cable, regardless of display capability.

HDMI 2.1 cable required for 8K and high-refresh 4K: This cable is required for resolutions above 4K/60Hz (such as 4K/120Hz or 8K/60Hz). Standard HDMI 2.0 cables cannot carry these signals.

Frequently Asked Questions

What resolution can I get with my Mac?
Mac computers connected with this cable are limited to 4K/60Hz output due to macOS display limitations.

What do I need to get 8K output?
Your computer must have an HDMI 2.1 output port and an 8K-capable GPU, and your display must support 8K resolution. All three — cable, GPU, and display — must support 8K.

Does this cable support 4K/120Hz for gaming?
Yes. This HDMI 2.1 cable supports 4K/120Hz, making it suitable for high-refresh-rate gaming on compatible displays and consoles.

Does this cable support audio return channel (ARC/eARC)?
Yes. This cable supports enhanced Audio Return Channel (eARC), enabling high-quality audio formats including Dolby TrueHD, Dolby Atmos, and DTS:X when connected to compatible AV receivers and soundbars.

Safety Instructions

Warning: Fire, electric shock, or damage could occur if the following instructions are not obeyed.

1. Do not bend, kink, or pinch the cable sharply.
2. Keep away from liquids and moisture.
3. Do not use if the cable or connectors are damaged.
4. Do not force connectors into ports — ensure correct alignment before inserting.

Need Help?

Contact Satechi Support at support.satechi.com or email support@satechi.com.
Phone: +1 858 268 1800 | Website: www.satechi.com