HDMI cable EFB Elektronik HDMI-21-00001 — HDMI Type A to Type A, 0.5 m, HDMI 2.1, 48 Gbit/s, gold-plated contacts, black/grey

EFB Elektronik HDMI-21-00001 is an ultra-high-speed HDMI 2.1 cable with HDMI Type A male connectors on both ends and a compact 0.5 m length. Designed to transmit high-bandwidth audio and video signals, the cable supports up to 48 Gbit/s data transfer for 8K@60Hz and 4K@120Hz workflows, 3D formats and includes Audio Return Channel (ARC). The jacket is braided textile in black/grey and the connectors feature gold-plated contacts for reliable connection and corrosion resistance.

Advantages

The cable provides HDMI 2.1 performance with a 48 Gbit/s bandwidth, enabling high-resolution video and advanced audio formats while maintaining short connection distance and low signal loss. Gold-plated contacts and pure-copper conductors improve signal integrity. The braided outer jacket increases mechanical durability and the compact 0.5 m length minimises cable clutter behind TVs, monitors and AV equipment.

Suitable for

• Connecting a TV to a set-top box or AV receiver where high-resolution video (up to 8K@60Hz) is required
• Linking a game console or gaming PC to a monitor or TV for 4K@120Hz gameplay
• Short-reach connections in home theatre setups, video production gear racks or desktop workstation environments
• Transmiting multichannel audio formats and ARC-capable soundbars or AV receivers

When it may not be suitable

This 0.5 m cable is intended for short-distance connections; it is not suitable when long cable runs are required between devices in different rooms or over several metres. For extended runs, a longer certified ultra-high-speed HDMI cable or a signal extender is more appropriate. The compact length also limits flexibility when devices are further apart or require routing through complex cable management paths.

Key specifications

• Length: 0.5 m
• Connector type: HDMI Type A (Standard) male to HDMI Type A (Standard) male
• HDMI version: 2.1 (Ultra High Speed compatible)
• Maximum bandwidth: 48 Gbit/s
• Supported resolutions: up to 8K@60Hz and 4K@120Hz
• Audio support: ARC and advanced audio formats (Dolby Atmos, DTS-HD variants, Dolby TrueHD)
• Contact plating: gold-plated connector contacts
• Conductor material: pure copper conductors
• Outer jacket: braided textile (black/grey)

How to use

Plug one HDMI Type A male connector into the HDMI output of your source device (for example a game console, Blu‑ray player or PC) and the other connector into the HDMI input of your display or AV receiver. Ensure connectors are fully inserted until they click or seat firmly. For ARC functionality, connect the cable to the TV HDMI ARC port and the corresponding ARC-enabled input on your soundbar or receiver, then enable ARC in the devices' settings if required. Use the short 0.5 m length where devices are close together to reduce excess cable and interference.

What to consider before purchase

• Required cable length — 0.5 m is suitable for short, in-room connections only
• Device compatibility — ensure both devices support HDMI 2.1 features you plan to use (e.g., 8K@60Hz or 4K@120Hz)
• Audio features — confirm ARC/eARC requirements and AV receiver or soundbar compatibility
• Installation environment — braided jacket improves durability for visible runs but plan routing if tight bends or concealed paths are needed

Usage recommendations

Use this EFB Elektronik HDMI 2.1 cable for short, high-bandwidth connections between modern source devices and displays. For best results, keep cable runs short, avoid sharp bends near the connectors, and verify device HDMI settings to enable desired resolution and audio passthrough.