What is HDMI 2.1a?

HDMI 2.1a makes some minor yet useful upgrades to the existing HDMI 2.1 feature set. Read on to learn what is HDMI 2.1a.

What Is HDMI 2.1a, and How Is It Different?

HDMI 2.1 type-A male to type-C male Flat Cable

Pure Fi Ultra High Speed HDMI 2.1A Active Optic Cable (20ft) – 48Gbps, 8K60Hz, eARC, CEC, HDR, Low EMI for Laptops, Monitors, PS5, Xbox X

HDMI 2.1 Cable 8K 4K 60Hz male to female Extension Cable Adapter Dynamic HDR ARC

HDMI 2.1a announced, making yet another 'standard' messier - 9to5Mac

VIZIO XCH21-81G Ultra High-Speed 8 Ft HDMI 2.1 Cable

Certified with the latest 8K Ultra High-Speed HDMI 2.1a specification, the SVS SoundPath Ultra HDMI cable performs to the latest standards of new and legacy audio video products. HDMI ARC and eARC compliant. 48Gbps bandwidth supports video resolution up to 10K. Inspired engineering and premium build materials ensure vivid picture quality, breathtaking sound, and a future-facing entertainment experience.

SVS SoundPath Ultra HDMI Cable

HDMI 2.1 Explained – Everything You Need to Know - ViewSonic Library

HDMI 2.1a Specifications Updated to Include Cable Power Option

What is HDMI 2.1a?

HDMI 2.1a Adds HDMI Cable Power Feature, Enabling Active Cables without Need for Separate Power Connector