📶 HDMI Cable — Technical Specifications
🌀 Supported Versions
Most modern HDMI cables support one of the following:
HDMI 1.4
HDMI 2.0
HDMI 2.1
(Backward compatible across versions)
📺 Video
Feature
Typical Support
Max Resolution
Up to 4K @ 120 Hz (HDMI 2.1)
Alternate Max
1080p @ 60 Hz (HDMI 1.4), 4K @ 60 Hz (HDMI 2.0)
Color Depth
up to 48‑bit deep color
HDR Support
HDR10 / Dolby Vision (with HDMI 2.0+)
Wide Color Gamut
Rec. 2020 / DCI‑P3
3D Video
Supported (varies by source device)
🔊 Audio
Formats: PCM, Dolby Digital, DTS, Dolby TrueHD, DTS‑HD Master Audio
Channels: Up to 8 or more (7.1+)
Audio Return Channel (ARC/eARC): Supported on HDMI 2.0+ (eARC on 2.1)
🔄 Bandwidth & Performance
HDMI Version
Max Bandwidth
Typical Use
HDMI 1.4
Up to 10.2 Gbps
1080p video, some 4K @ 30 Hz
HDMI 2.0
Up to 18 Gbps
4K @ 60 Hz, HDR
HDMI 2.1
Up to 48 Gbps
4K @ 120 Hz, 8K @ 60 Hz, high‑speed gaming
🔌 Connectors & Physical
Connector type: Standard Type A (most TVs & devices)
Alternate Types:
Mini HDMI (C) – small devices
Micro HDMI (D) – compact devices
Wire gauge: Typically 28 AWG – 30 AWG (varies by cable length/quality)
Jacket: PVC or braided shielding for durability
Length: Commonly 1 m to 5 m (signal quality may decline past ~10 m without active/optical enhancement)
🛠️ Key Features
Ethernet channel: (optional) shared network over HDMI
Audio Return Channel (ARC / eARC): sends audio from TV back to AV receiver/soundbar
HDCP Compliance: supports HDCP 1.4/2.2 (copy protection)
CEC Control: allows remote control interoperability between connected devices
📊 Compatibility Notes
Fully backward compatible – newer cables work with older HDMI ports
To achieve higher resolutions/refresh rates (e.g., 4K @ 120 Hz), source device + TV + cable all must support required HDMI version
📌 Quick Summary
HDMI Cable — Typical Specs
📺 Video up to 4K/120 Hz (HDMI 2.1)
🔊 Audio up to 7.1+ surround
📡 Bandwidth up to 48 Gbps
🔁 Supports ARC/eARC
🔒 HDCP compliance
🔌 Standard Type A connector