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3 Ways to Identify HDMI 2.1 Cables

20 Feb 2023 0 Comments

hdmi 2.1 cable

There are different quality of HDMI 2.1 in the market. how to identify HDMI 2.1 cable conforming to the standard is important to save your money. Cabletime is a professional HDMI cable factory, so we can easily tell the real HDMI 2.1 cable. Here are some ways to teach you to buy the real HDMI 2.1 cable.

 8k HDMI 2.1 Cable


HDMI 2.1 Cable Specifications

HDMI Forum announced that HDMI 2.1 cables should support all of the following standards.    

  1. Support 8K 60Hz and 4K 120Hz resolutions up to 10K
  2. Support dynamic HDR
  3. Support 48G bandwidth transmission
  4. Support eARC
  5. Support Variable Refresh Rate (VRR), Quick Media Switching (QMS), and Quick Frame Transfer (QFT)
  6. Support Auto Low Latency Mode (ALLM)

The following are ways to identify HDMI 2.1 cables

1. Look for the label of SuperSpeed HDMI cable

the label of SuperSpeed HDMI cable

All HDMI 2.1 cables certified by the HDMI Forum Authorized Test Center (Forum ATC) are required to have the SuperSpeed HDMI certification label on the package. Therefore, you only need to check the certification label on the package that is available. In addition, please double check the name "Ultra High Speed HDMI Cable" printed on the package.

2.Scan the label with HDMI APP

HDMI 2.1 cable QR code + hologram and certified text.

CABLETIME HDMI 2.1 cable certification

HDMI 2.1 certified cable label is made of QR code + hologram and certified text. Download the HDMI Cable Certification App from the Apple App Store, Google App Store and other Android App Stores. Scan the QR code of the HDMI cable certification app and it will display your certification information. If you get the wrong one, you may buy an non certified HDMI 2.1 cable.

3.Test the functionality of HDMI 2.1 by yourself

Connect to an 8K display or TV, then check if the cable is working properly. If the 8K TV shows delay or interference, most likely the cable is not HDMI 2.1.

If you bought a fake HDMI 2.1 cable, please don't panic, keep the evidence and show it to the seller. They will refund your money.

CABLETIME is a professional audio and video accessories company. We specialize in USB cables, HDMI cables, diaplayport and mini displayport cables, adapters, hubs and docking.

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