Immune to hum, and limited to compressed surround

The best optical audio cables for 2026

Toslink carries audio as light, which makes it completely immune to the ground loops that produce hum — and imposes a hard limit that no cable escapes: it cannot carry Dolby Atmos or lossless formats. It carries stereo PCM and compressed 5.1, and that is the format ceiling of the standard, not of the product. Given that, the differences are honest and small. Fibre material: plastic (PMMA) is standard and fine to about ten metres, glass costs more and goes further. Connector build and a proper strain relief, since the ferrule is the part that breaks. And the mini-Toslink adapter, which several devices need. We compare fibre material, stated maximum length, connector construction, adapters supplied, and the formats the standard allows.

What we recommend

1. 

   RedStar24 Toslink optical audio cable, 2 m

   Two metres of properly finished Toslink at the lowest price here — and a format list in its own listing that the standard itself will not support.

   Length

   2 m — stated

   Cable diameter

   5 mm — stated

   Connectors

   Gold-plated Toslink, precision-made, with strain relief — stated

   Standard

   S/PDIF optical — stated

   Fibre material

   Not stated in this listing

   Formats the standard allows

   Stereo PCM and compressed 5.1 — a limit of Toslink itself, not of this cable

   Formats claimed in the listing

   Includes Dolby TrueHD and DTS-HD Master Audio — which Toslink cannot carry

   Amazon reference

   B099FH7QZR (same reference on 5 Amazon marketplaces)

   EAN

   0690677203196

   • The cheapest optical cable in this catalogue
   • A described strain relief, which is the part of a Toslink cable that actually breaks
   • The listing claims Dolby TrueHD and DTS-HD Master Audio, which the optical standard cannot carry at any bit rate

   Best for: A television without HDMI ARC feeding a soundbar or amplifier a couple of metres away.

   ≈ 5 €

   Check price on Amazon
2. 

   MOSWAG Toslink optical digital audio cable, 1 m

   The shortest optical cable here, braided against tangling — with a "lossless" claim that describes the transmission and not the format.

   Length

   1 m — stated

   Connectors

   Toslink at both ends, 24k gold-plated — stated

   Fibre material

   Glass fibre construction, stated by the maker

   Jacket

   Braided, for protection against tangling and wear — stated

   Formats the standard allows

   Stereo PCM and compressed 5.1 — a limit of Toslink itself

   Amazon reference

   B0DG35GWGH (same reference on 6 Amazon marketplaces)

   EAN

   0781044690647

   • One metre keeps the run tidy where the soundbar sits directly under the television
   • A braided jacket, which resists the tangling that kills thin optical cables behind furniture
   • The listing describes the connection as lossless, which describes the transmission and not the format ceiling of Toslink

   Best for: A soundbar immediately below the television it is connected to.

   ≈ $6 / £5 / 6 €

   Check price on Amazon
3. 

   VENTION braided Toslink optical audio cable, 2 m

   A cotton-mesh braid instead of nylon, chosen for flexibility — on an optical cable that has to bend behind furniture, that is the right trade.

   Length

   2 m — stated

   Standard

   Standard Toslink connector, S/PDIF optical fibre — stated

   Jacket

   PVC with a cotton mesh braid, stated more flexible than nylon braid

   Connectors

   Gold-plated, in an aluminium shell — stated

   Interference

   Immune to electromagnetic interference — a property of optical transmission

   Colour

   Grey — stated

   Formats the standard allows

   Stereo PCM and compressed 5.1 — a limit of Toslink itself

   Amazon reference

   B09SZ319SH (same reference on 6 Amazon marketplaces)

   EAN

   5059821024646

   • A jacket chosen and justified for flexibility rather than for appearance
   • Gold-plated ferrules in an aluminium shell, which is a robust ferrule for the money
   • The fibre material is not stated

   Best for: A run that has to bend tightly behind a cabinet or around a corner.

   ≈ £5 / 7 €

   Check price on Amazon
4. 

   Pxyelec S/PDIF Toslink optical cable, 10 m

   The long run on this shelf — and the one where the unstated fibre material stops being a detail and becomes the specification.

   Length

   10 m — stated

   Connectors

   Toslink plug to Toslink plug — stated

   Fibre

   High-quality fibre core stated; the material is not named

   Compatibility

   ADAT, DAW, Dolby Digital and DTS devices — stated

   Colour

   Black — stated

   Formats the standard allows

   Stereo PCM and compressed 5.1 — a limit of Toslink itself

   Amazon reference

   B089LGSKC8 (same reference on 5 Amazon marketplaces)

   EAN

   0611138971119

   • Ten metres in a single optical run, with no power and no boxes at either end
   • The format list stops at Dolby Digital and DTS, which is what Toslink actually carries
   • The fibre material is not named, and at ten metres plastic against glass is the deciding specification

   Best for: A long run to an amplifier at the other end of a room, where hum has been the problem.

   ≈ 9 €

   Check price on Amazon
5. 

   OEHLBACH Hyper Profi Opto 300, 3 m

   Metal ferrules instead of plastic, a published data rate, and a format list that stops at what Toslink genuinely carries.

   Length

   3 m — stated

   Connectors

   Metal Toslink connectors — stated

   Stated transfer rate

   Up to 75 Mbit/s — stated

   Formats stated

   Dolby Digital, DTS, DVD Audio and LPCM — stated

   Jacket

   Flexible, durable — stated

   Colour

   Black — stated

   Formats the standard allows

   Stereo PCM and compressed 5.1 — matching what this maker claims

   Amazon reference

   B00007ELUA (same reference on 6 Amazon marketplaces)

   EAN

   4003635060834

   • Metal Toslink connectors, where the whole shelf uses plastic — and the ferrule is what breaks
   • A published transfer rate, which nothing else on this shelf gives
   • Several times the price of every other optical cable here, for a standard whose ceiling nobody can raise

   Best for: A permanent installation where the cable will be plugged and unplugged, and the ferrule has to survive it.

   ≈ £43 / 36 €

   Check price on Amazon