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Black 40 ft HDMI cable with two gold male connectors

Kaybles

Kaybles NMHD-40MM 40 ft HDMI Cable with Ethernet CL2 24AWG Gold

SKU CH-9W4Y-Y17KC MPN NMHD-40MM

40 ft CL2-rated High Speed HDMI cable with Ethernet, 24 AWG gold-plated connectors, and triple shielding for in-wall 3D and Ultra HD use

  • Cable length40 ft (12.2 m)
  • Connector count2
  • Connector genderMale to Male
  • Product colorBlack
  • Overall length40 ft (12.2 m)
  • Key featuresCL2 rated for inside-wall application Fully supports 3D over
  • 40 ft length connects devices across large rooms
  • CL2 rating permits safe in-wall installation
  • Gold-plated connectors resist corrosion for reliable signal transfer
  • Three-layer shielding blocks EMI and RFI interference
  • 24 AWG conductors support Ultra HD and 3D content

Long-Distance Home Entertainment Link

The Kaybles NMHD-40MM is a 40 ft High Speed HDMI cable with Ethernet built for whole-room or through-wall runs. Its CL2 rating allows safe inside-wall installation. Gold-plated male-to-male connectors and triple-layer shielding protect signal integrity over the full length. It suits installers and enthusiasts wiring projectors, large displays or distributed AV systems.

Replacing Shorter or Unrated Cables

This cable upgrades any run that exceeds the reach of standard passive leads or lacks an in-wall fire rating. The jump is worth it when the source and display are separated by more than a few metres and the path passes through studs or conduit. It also adds the HDMI Ethernet Channel so compatible devices can share a network connection without a separate cable. Buyers who need only a short desk connection or a thinner flexible lead will find the 24 AWG gauge and 40 ft length excessive.

Sustained Signal Stability

Under continuous 1080P or Ultra HD playback the gold contacts resist corrosion and the shielding rejects EMI and RFI that accumulate near power cables. The 24 AWG conductors maintain bandwidth across the full 40 ft without the dropouts seen on thinner long cables. The CL2 jacket withstands the thermal cycling inside walls. The cable does not amplify or equalise the signal, so source devices must meet the standard drive strength for the full distance.

How it compares

Measured against everything we stock in HDMI & Mini HDMI Cables, at today’s prices. Recalculated every night.

Price $33.99
Pricier than about 74% of the 785 comparable items (median $17.99).

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Specifications

Product
Brand nameKaybles
Model nameNMHD-40MM
Product colorBlack
Ports & slots
Connector count2
Connector genderMale to Male
Size & build
Overall length40 ft (12.2 m)
Cable length40 ft (12.2 m)
Shipping weight1.25 kg
Package size217 × 206 × 155 mm

Questions about this item

What conduit size fits a 24 AWG cable that is 40 ft long?

A 24 AWG HDMI cable typically fits in standard ¾ inch or larger conduit; allow gentle bends and avoid sharp corners over the 40 ft run.

How do I install this CL2-rated HDMI cable inside a wall without damaging the connectors?

Pull the cable by the jacket using a fish tape, not the gold-plated male connectors; keep bends wide and secure with low-voltage brackets every 4 ft.

When should I replace the gold-plated connectors on this in-wall HDMI cable?

Replace if the gold plating shows visible corrosion, pins are bent, or 3D and Ultra HD signals become unstable after years of service.

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