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Monoprice

Monoprice 138643 Ultra 8K High Speed HDMI Extension Cable

★★★★★4.6 (200 reviews)
8K4KHDR10HDR

Future-Proof Your Home Theater The Monoprice High Speed HDMI Extension Cable delivers the ultimate viewing experience with support for Ultra 8K resolution and 48Gbps bandwidth. With Dynamic HDR and eARC support, this cable ensures you're ready for the next generation of home theater technology. S...

$13.89*
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

Future-Proof Your Home Theater

The Monoprice High Speed HDMI Extension Cable delivers the ultimate viewing experience with support for Ultra 8K resolution and 48Gbps bandwidth. With Dynamic HDR and eARC support, this cable ensures you're ready for the next generation of home theater technology.

Specifications

  • Length: 1.5 Feet
  • Bandwidth: 48Gbps
  • Resolution: Ultra 8K
  • HDR: Dynamic HDR
  • Audio: eARC (Enhanced Audio Return Channel)
  • Series: DynamicView
  • Color: Black

Key Features

Supports 8K@120Hz/60Hz/30Hz, 4K@144Hz/120Hz/60Hz/30Hz video resolutions

Backwards compatible with HDMI versions 2. 0 & 1. 4. Supports VESA DSC 1. 2a/BT. 2020

Supports HDR10 Dolby Vision, Variable Refresh Rate (VRR), and Quick Frame Transport. Supports up to 32 audio channels and a 1536kHz audio sampling rate

Supports Dynamic HDR. Delivers up to 48Gbps bandwidth

Supports ear (Enhanced Audio Return Channel) and ear Object-Based Audio. Supports Game Mode VRR and the advanced game eco-system

Specifications

Supported Video Resolutions
8K@120Hz/60Hz/30Hz, 4K@144Hz/120Hz/60Hz/30Hz
Backward Compatibility
HDMI 2.0 & 1.4
Color Support
VESA DSC 1.2a/BT.2020
HDR Support
HDR10 Dolby Vision, Dynamic HDR
Gaming Features
Variable Refresh Rate (VRR), Quick Frame Transport, Game Mode VRR
Bandwidth
Up to 48Gbps
Audio Features
eARC (Enhanced Audio Return Channel), Object-Based Audio
Max Audio Channels
32
Audio Sampling Rate
1536kHz

Pros & Cons

👍 Pros

  • Supports very high video resolutions, including 8K at 120Hz/60Hz/30Hz, catering to future-proof display technologies.
  • Also supports 4K at 144Hz/120Hz/60Hz/30Hz, ideal for high-refresh-rate gaming and professional monitors.
  • Backward compatible with HDMI versions 2.0 and 1.4, ensuring functionality with a wide range of existing devices.
  • Supports VESA DSC 1.2a/BT.2020, enhancing color space and dynamic range capabilities.
  • Features HDR10 Dolby Vision support, delivering superior contrast and color accuracy in compatible content.
  • Includes Variable Refresh Rate (VRR) and Quick Frame Transport (QFT), optimizing gaming experiences by reducing lag and stutter.
  • Capable of delivering up to 48Gbps bandwidth, facilitating uncompressed video and audio transmission.
  • Supports eARC (Enhanced Audio Return Channel) and Object-Based Audio, improving audio quality and immersion.
  • Designed to support the advanced game ecosystem with features like Game Mode VRR.
  • Supports up to 32 audio channels and a 1536kHz audio sampling rate, providing high-fidelity sound.

👎 Cons

  • As an extension cable, it adds an additional connection point to an existing HDMI chain, which could theoretically introduce signal degradation if not properly managed.
  • The maximum performance, such as 8K@120Hz, requires all connected devices (source, display, and any other cables) to also support these specifications.
  • The benefits of its advanced features (e.g., 8K resolution, 48Gbps bandwidth) are only realized with compatible, high-end equipment.
  • It is an extension cable, not a direct connection cable, which implies it's intended to lengthen an existing setup rather than stand alone.
  • May not be necessary for users with older equipment that doesn't support 8K or high refresh rates, making some features redundant.

Frequently Asked Questions

This cable supports 8K video at 120Hz, 60Hz, or 30Hz, and 4K video at 144Hz, 120Hz, 60Hz, or 30Hz, ensuring compatibility with high-resolution displays.
Yes, this Monoprice Ultra 8K High Speed HDMI Extension Cable is backward compatible with HDMI versions 2.0 and 1.4, allowing connection to a range of devices.
Yes, the cable supports HDR10 Dolby Vision and Dynamic HDR, which enhances the contrast and color depth in compatible content.
This cable is designed to deliver up to 48Gbps bandwidth, which is essential for transmitting uncompressed high-resolution video and audio signals.
Yes, it supports eARC (Enhanced Audio Return Channel) and Object-Based Audio, providing advanced audio capabilities for compatible sound systems.
This cable supports gaming features such as Variable Refresh Rate (VRR), Quick Frame Transport, and Game Mode VRR to optimize the gaming experience.

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