Disclosure: As an Amazon Associate, umtsmarttool.com earns from qualifying purchases. Links to Amazon on this page are affiliate links; they cost you nothing extra.

Use HDMI ARC or eARC for the best connection; optical is a fallback.

This guide is built from Amazon product listings, not our own testing, so confirm channels, ports, compatibility and current price on each product page.

Prices are approximate US dollar conversions of what Amazon showed on October 31, 2026.

Last updated: October 31, 2026.

Quick Picks

Product Type Best for
Amazon Basics Toslink Optical Cable Optical audio cable Cheap and trusted
KabelDirekt Optical Cable (6 ft) Optical audio cable TOSLINK 6ft
VIOY Optical Cable (15 ft) Long optical cable 15 ft TOSLINK
Silkland HDMI eARC Cable (3.3 ft) HDMI eARC cable Certified HDMI 2.1
8K HDMI ARC/eARC Cable (6.6 ft) HDMI eARC cable 6.6 ft for soundbars
Silkland 8K HDMI ARC/eARC Cable (6.6 ft) HDMI eARC cable 8K@60Hz for soundbars

Our Picks

An Amazon Basics Toslink digital optical audio fiber optic cable for sound bars and audio systems, per the listing. It was shown at about $8 on Amazon.com on October 31, 2026.

Good for: Cheap and trusted. Watch out: optical has limited format support.

Check on Amazon

2. KabelDirekt Optical Cable (6 ft)

A KabelDirekt optical audio TOSLINK cable, 6ft, per the listing. It was shown at about $9 on Amazon.com on October 31, 2026.

Good for: TOSLINK 6ft. Watch out: optical has limited format support.

Check on Amazon

3. VIOY Optical Cable (15 ft)

A VIOY optical audio cable, 15 ft, TOSLINK digital S/PDIF fiber optic cord, per the listing. It was shown at about $10 on Amazon.com on October 31, 2026.

Good for: 15 ft TOSLINK. Watch out: optical has limited format support.

Check on Amazon

4. Silkland HDMI eARC Cable (3.3 ft)

A Silkland certified HDMI 2.1 eARC/ARC cable, 3.3FT, ultra high speed 48Gbps, per the listing. It was shown at about $10 on Amazon.com on October 31, 2026.

Good for: Certified HDMI 2.1. Watch out: short.

Check on Amazon

5. 8K HDMI ARC/eARC Cable (6.6 ft)

An 8K HDMI ARC/eARC cable for soundbars, 6.6ft, ultra high speed HDMI 2.1 48Gbps, per the listing. It was shown at about $10 on Amazon.com on October 31, 2026.

Good for: 6.6 ft for soundbars. Watch out: lesser-known brand.

Check on Amazon

6. Silkland 8K HDMI ARC/eARC Cable (6.6 ft)

A Silkland 8K HDMI ARC/eARC cable 2.1 for soundbar, 6.6ft, 8K@60Hz and 4K@120Hz, per the listing. It was shown at about $14 on Amazon.com on October 31, 2026.

Good for: 8K@60Hz for soundbars. Watch out: check TV and soundbar ARC port.

Check on Amazon

How to Choose

ARC or eARC

Both TV and bar must support it.

Optical limits

Optical does not carry Atmos.

Length

Measure first.

Frequently Asked Questions

HDMI or optical?

HDMI ARC/eARC when possible.

Cheapest?

Amazon Basics Toslink.

Long?

VIOY 15 ft.

Bottom Line

For eARC, the Silkland HDMI cables. For optical, the Amazon Basics Toslink.

More Soundbar Guides