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Three metres, certified, and that is the whole specification

Southlight certified Ultra High Speed HDMI cable, 3 m

Three metres is the length at which passive copper still carries 48 Gbit/s reliably — and the certification is what makes that claim verifiable rather than printed.

Southlight braided Ultra High Speed HDMI cable, 3 metres

Southlight certified Ultra High Speed HDMI cable, 3 m

Three metres is the length at which passive copper still carries 48 Gbit/s reliably — and the certification is what makes that claim verifiable rather than printed.

Length
3 m — stated
Certification
Ultra High Speed, stated by the maker
Stated bandwidth
48 Gbit/s — stated
Resolutions
Up to 7680 × 4320 at 60 Hz, and 4K at 120 Hz — stated
Audio
eARC, Dolby Atmos, DTS and DTS Master — stated
Construction
Passive copper, braided nylon jacket, gold-plated connectors, aluminium alloy housing — stated
Backward compatibility
HDMI 1.3, 1.4, 2.0, 2.0a and 2.1 — stated
Amazon reference
B0D4R2MY7F (same reference on 5 Amazon marketplaces)
EAN
0787942713389
  • Ultra High Speed certification, which is the only label on an HDMI cable that means anything
  • Three metres — long enough for most rack-to-screen runs and short enough for passive copper to be dependable
  • Braiding, gold plating and an alloy shell are construction, not capability — none of them raises bandwidth

Best for: A projector or receiver up to three metres from the source, at 4K 120 Hz or 8K.

≈ 7 €
Check price on Amazon

Specifications

Length
3 m — stated
Certification
Ultra High Speed, stated by the maker
Stated bandwidth
48 Gbit/s — stated
Resolutions
Up to 7680 × 4320 at 60 Hz, and 4K at 120 Hz — stated
Audio
eARC, Dolby Atmos, DTS and DTS Master — stated
Construction
Passive copper, braided nylon jacket, gold-plated connectors, aluminium alloy housing — stated
Backward compatibility
HDMI 1.3, 1.4, 2.0, 2.0a and 2.1 — stated
Amazon reference
B0D4R2MY7F (same reference on 5 Amazon marketplaces)
EAN
0787942713389

What certification actually certifies

An Ultra High Speed cable has been measured against the 48 Gbit/s specification. That is the entire useful claim on any HDMI cable, and it is the one thing a version number printed on a jacket does not give you — licensing does not permit selling cables by version, precisely because a cable cannot implement a feature set.

Why three metres is the interesting number

Passive copper carries 48 Gbit/s reliably to about three metres. Beyond that the honest answers are an active cable with a directional marking, or an optical one. This cable sits at the top of the dependable range, which makes it the longest thing on this shelf you can buy without changing technology.

What the rest of the listing is

Nylon braid, gold plating, an aluminium shell. Construction. They decide how long the cable survives being dragged behind a cabinet; they do not raise its bandwidth, and none of them was part of the certification.

The audio end

eARC is stated, which is what carries a full-rate soundtrack back from a television to a soundbar or receiver. It is the specification that makes an HDMI run better than an optical one.

Availability

On sale from 7 € to 10 € on the German, French, Italian and Spanish Amazon stores at the time of checking.

The Italian Amazon listing is priced above 1.6× the cheapest store, which is normally a reshipping offer rather than a local price; it is left out of the range above.

Listed but with no offer on the British Amazon store — the reference exists there and nobody is currently selling it.

Not found on the American Amazon store, where the buy link falls back to a local search rather than to a page that does not exist.

Prices and availability are what Keepa reported on the date this page was updated; both move.

Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.

Machines this fits

More HDMI cables

  • Ubluker braided certified HDMI cable, 1.5 metres

    Ubluker certified Ultra High Speed HDMI cable, 1.5 m

    A short certified cable that lists the gaming features by name — VRR, ALLM, QMS, QFT — rather than leaving them implied by a version number.

    Length
    1.5 m — stated
    Certification
    Official HDMI certification label on the front of the packaging — stated
    Stated bandwidth
    48 Gbit/s — stated
    Features named
    CEC, SBTM, ALLM, VRR, QMS, QFT, Dynamic HDR, HDR10+ — stated
    Copy protection
    HDCP 2.2 and 2.3 — stated
    Compression
    VESA DSC 1.2 — stated
    Audio
    eARC, ARC, DTS Master, DTS:X, Dolby TrueHD and Dolby Atmos — stated
    Construction
    Braided nylon jacket, EMC test passed — stated
    Amazon reference
    B0CL2GD64Y (same reference on 6 Amazon marketplaces)
    EAN
    0709226591636
    • Points at a physical certification label on the packaging, which can be verified in the HDMI certification app
    • Names the individual features rather than hiding them behind a version number
    • 1.5 m is short — it will not reach a ceiling-mounted projector

    Best for: A console or streaming box next to the television, where a short run and every gaming feature matter.

    ≈ $14 / £8 / 11 €
    Check price on Amazon
  • CSL-Computer Primewire 10 metre HDMI cable

    CSL-Computer Primewire 10 m HDMI cable

    Ten metres of passive copper carrying two incompatible claims in the same listing — and at that length, the more modest one is the one to plan around.

    Length
    10 m — stated
    Claim in the title
    Certified, 48 Gbit/s, 4K 120 Hz and 8K 60 Hz — stated
    Claim in the specification line
    Standard HDMI 2.0b, maximum resolution 2160p — stated by the same maker
    Shielding
    Triple shielded, alu-mylar foil with braided screen (SF/FTP) — stated
    Connectors
    2 × 19-pin HDMI Type A, gold-plated contacts — stated
    Colour depth
    x.v.Color and Deep Colour to 48-bit — stated
    Audio
    Stereo, 5.1, 7.1, DTS-HD Master Audio and Dolby formats — stated
    Construction
    Passive copper — no active or optical element stated
    Amazon reference
    B06VWHSCN4 (same reference on 4 Amazon marketplaces)
    EAN
    4251259140733
    • Ten metres in a single passive run, which reaches a ceiling projector without boxes or power
    • Triple shielding described in detail rather than asserted
    • The title and the maker's own specification line state two different standards, and only one of them can be right

    Best for: A long run at 4K 60 Hz, where the modest claim is the one being relied on.

    ≈ 17 €
    Check price on Amazon
  • Sniokco certified 8K HDMI cable with aluminium housing

    Sniokco certified 48 Gbit/s HDMI cable, 1.5 m

    The same 48 Gbit/s certification as everything else here, in the same short length, with a nickel-plated connector instead of a gold one.

    Length
    1.5 m — stated
    Certification
    Officially HDMI 2.1 certified, stated by the maker
    Stated bandwidth
    48 Gbit/s — stated
    Colour
    Dynamic HDR with 12-bit colour depth — stated
    Audio
    eARC — stated
    Construction
    Aluminium alloy housing, nickel-plated connectors — stated
    Amazon reference
    B0CQTF3F5R (same reference on 6 Amazon marketplaces)
    EAN
    5410467555817
    • Certified at 48 Gbit/s, which is the only claim that matters on this shelf
    • Priced with the shortest cables here rather than with the long ones
    • The specification is identical to the two cables beside it — there is nothing here to prefer it for

    Best for: A short run where the certification matters and the brand does not.

    ≈ £9 / 11 €
    Check price on Amazon

Others worth a place in the rack

  • FeinTech BT200 Bluetooth transmitter with OLED display

    FeinTech BT200 Bluetooth 5.4 transmitter with Auracast

    An OLED display that names the codec actually in use — which is the one fact this whole shelf depends on and nothing else here shows you.

    Bluetooth version
    5.4, with Auracast — stated
    Codecs
    LC3 HQ, aptX and aptX Adaptive — stated
    Display
    OLED showing connected devices and the active codec — stated
    Inputs
    3.5 mm AUX, Toslink with bypass, USB audio — stated
    Pass-through
    Toslink bypass for a second audio device — stated
    Listeners
    Up to 2 classic Bluetooth headphones, or unlimited Auracast-capable ones — stated
    Power
    USB socket or mains adapter; the adapter is not included — stated
    Amazon reference
    B0FTMNDPW1 (same reference on 5 Amazon marketplaces)
    EAN
    4026423000669
    • An OLED display naming the active codec, which turns the shelf's central uncertainty into a visible fact
    • A Toslink bypass, so a soundbar keeps working while headphones are in use
    • Auracast requires headphones that support it, and most current headphones do not

    Best for: A household that wants several people listening, or anyone who wants to see which codec is actually connected.

    ≈ £57 / 60 €
    Check price on Amazon
  • DIGITUS DS-55357 HDMI KVM extender transmitter and receiver

    DIGITUS DS-55357 HDMI KVM extender, 60 m over Cat 6

    The only extender here that publishes a latency figure and two distance figures for two resolutions — and the only one that is genuinely uncompressed at 4K.

    Method
    Transmitter and receiver pair over Cat 6 or higher, point to point — stated
    Stated distance at 4K
    Up to 40 m at 4K 30 Hz (3840 × 2160p), uncompressed — stated
    Stated distance at 1080p
    Up to 70 m at 1080p 60 Hz, uncompressed — stated
    Stated latency
    10–20 ms — stated
    KVM
    Keyboard and mouse connect at the receiver end — stated
    Cable category required
    Cat 6 or higher — stated
    Installation
    Plug and play — stated
    Amazon reference
    B0FG2SC2PQ (same reference on 6 Amazon marketplaces)
    EAN
    4016032501954
    • Publishes two distances for two resolutions, which is how this specification should be written
    • A stated latency figure — 10 to 20 ms — which nothing else on this shelf gives
    • The most expensive device on this shelf by a wide margin

    Best for: A 4K projector forty metres from a rack, or a computer driven from the room its screen is in.

    ≈ £108 / 85 €
    Check price on Amazon
  • KUYIA active HDMI 2.1 booster repeater with USB-C power

    KUYIA active HDMI 2.1 booster and repeater

    A booster that sits between two cables rather than a pair that sits at two ends — and its 8K claim and its 50 m claim describe different situations.

    Method
    In-line active repeater between two HDMI cables — stated
    Stated resolutions
    8K at 60 Hz, 4K at 120 Hz and 240 Hz — stated
    Stated distance
    Extends HDMI 1080p to up to 50 m — stated
    Copy protection
    HDCP 2.3 — stated
    Power
    Optional USB-C, recommended by the maker for especially long runs
    Cable requirement
    Certified Ultra High Speed HDMI cables on both the input and the output side — stated by the maker
    Shielding
    Advanced shielding and anti-interference technology — stated
    Amazon reference
    B0G7DFN7F7 (same reference on 6 Amazon marketplaces)
    EAN
    5060853004155
    • Works in the middle of an existing run rather than requiring a network cable
    • The maker states the cable requirement on both sides, which is the condition its claims depend on
    • The 8K figure and the 50 m figure appear in the same listing and describe different situations — the distance claim is stated for 1080p

    Best for: A long HDMI run that already exists and has become marginal, where replacing the cable is impractical.

    ≈ £31 / 26 €
    Check price on Amazon

All HDMI cables