Silverback, HDMI 1.4 Extension Cables

SKU SW-33500-3

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Need to extend your existing HDMI cable run an extra 25 feet? This high-quality cable will be the strongest link in the chain with precise construction, ample shielding, and pure copper conductors with gold plated connectors. Meets all HDMI v1.4 specs.

Supports up to 4k@30Hz

These "E4" HDMI cables currently only support resolution up to 4k@30Hz, which should be ok for most applications since most blue-ray movies and streaming services play video at 24-30fps. If you need a cable that can handle 4k@60Hz for applications like gaming, or HDR content in 60Hz, we recommend you upgrade to the silverback HDMI 2.0 cables.

Male to Female

This extension cable features a male connector on one end and a female connector on the other, allowing you to extend an existing HDMI Cable.

Using a "male-to-female" HDMI cable means you are extending an existing cable run. Keep in mind that the HDMI v1.4 maximum reliable distance is 50 feet unless you have an HDMI repeater in your chain.

If your HDMI cable run is longer than 50 feet, check out our HD-Link series to extend your HDMI signal over inexpensive-network cable.



Mfg. Part Number

  • SW-33500-3 3 ft.
  • SW-33500-6 6 ft.
  • SW-33500-10 10 ft.
  • SW-33500-15 15 ft. 
  • SW-33500-20 20 ft. 
  • SW-33500-25 25 ft. 
  • SW-33500-50 50 ft. 


  • Silverback™ by Sewell

Max Resolutions Supported

  • 4K × 2K, i.e. 3840 × 2160p at 24 Hz/25 Hz/30 Hz or 4096 × 2160p at 24 Hz
  • 1080p
  • 720p
  • 480p

HDMI Construction

  • Certified HDMI cable
  • 100% Digital (Audio & Video)
  • No compression, no conversion
  • HDMI Version: High Speed with Ethernet
  • 340MHZ /10.2Gbps bandwidth
  • 28 AWG
  • Outside diameter: 7.3 mm
  • CL2 Rated
  • Foil braided shielding around internal conductors


  • HDMI Ethernet Channel (100 Mbps speeds)
  • 3D support
  • Deep Color Support
  • Dolby/DTS Digital HD Surround Sound
  • Audio Sync

Customer Reviews

Based on 18 reviews
Always perfect

Every item I have ever ordered from Sewell (cables, adapters, etc) has been a product that does what I expect. Delivery is always quick. Can't ask for much more.

Part Number: SW-33500-15
HDMI Extension Cable

Pros: Works great with no degradation of the signal. Just what I needed.Cons: Other:

Part Number: SW-33500-15
Excellent Seller

Pros: Excellent SellerCons: Other:

Part Number: SW-33500-3
Perfect HDMI extension cable.

Pros: This cable works great. It is the perfect length for my application.Cons: noneOther: I needed an HDMI plug in on the front of my television set. This extension cable worked perfectly. I've ordered from Sewell before and am again really happy with their service. My product was delivered quickly.

Part Number: SW-33500-6
silverback e4 hdmi extension

Pros: Nice quility cable, with exelent picture.Cons: Other:

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