Silverback S4 HDMI Cable, 20 ft.

4K 30Hz, 1080p 60Hz, High-Speed with Ethernet, ARC, 3D, CL3, Gold-Plated Connectors

In Stock

"As advertised and shipping was fast!!!"


Sewell Silverback S4 HDMI Cable

Our Silverback S4 series HDMI cable is our entry-level HDMI cable and is capable of 4K 30Hz, 1080p 60Hz, 7.1 surround-sound, audio return channel (ARC), 3D, ethernet (HEC), and of passing all versions of HDCP. They carry a CL3 rating making them safe for installing behind walls at home or in public/commercial settings. Their gold-plated connectors resist corrosion and keep connectivity optimal.

The Best Value in HDMI Cable

Great high-speed HDMI cables with 3D and 4k support, Ethernet channel, audio return channel, and more don't have to cost a lot. Sewell standard grade high-speed HDMI cables are perfect for everyday use. This cable meets or exceeds all HDMI v1.4 specifications to preserve the highest quality image and sound. For HDMI 2.0 specs, check out our S6 series of HDMI Cable.

Supports 4K Resolutions

This cable can support 4K 30Hz. 4K resolutions add twice the number of pixels over the previous 1080p spec, allowing you to see a whole lot more detail in the video image. More and more content is becoming available these days in the 4K resolution, making this a great choice for years to come.

4K HDMI Cable

30 Hz vs 60 Hz Refresh Rates

You've probably started to see the Refresh Rate listed next to resolutions a lot more these days than in the past. For example, this S4 cable could be called "4K cable" but we typically call it "4K 30Hz cable" (which is the HDMI v1.4 standard) and we often call our S6 cable "4K 60Hz cable" (which is the HDMI 2.0 standard). This is because when you get to really big resolutions like 4K, the difference in refresh rates becomes more noticeable.

Simply put, 30 Hz refreshes all of the pixels on the screen 30 times a second while 60 Hz can refresh the screen 60 times per second, requiring twice the video bandwidth!

But what does it really mean for the user experience? It doesn't make a huge difference to the viewing experience if you are watching slow-moving content (like maybe that documentary about the Roosevelts you've been meaning to get to), but there's a dramatic difference when watching fast-moving content (like an action flick, video gaming, or Monday night football). Sports these days are broadcast in 60Hz so you can see fast-moving images in detail, like a ball fly quickly through the air without noticeable jumpiness or blur. If you love watching sports in 4K, you should definitely check out our 4K 60Hz cable.

TVs have dealt with low refresh rates for decades and have mitigated the perceived choppiness of the fast-moving image by using a technique called 'motion blur.' Instead of showing you a choppy image that will be jarring to the eye, TVs will often 'fill in the gaps' by creating a slightly blurry image when an object is travelling too quickly for the refresh rate to show it smoothly. Whether you are dealing with choppiness or motion blur, neither are ideal for gaming or watching fast-moving objects.

This cable supports v1.4 specs. Check out the HDMI v2.0 cable here. You can also find out more about HDMI version updates.

HDMI Diagram

Do you need a switch that will allow you to connect multiple HDMI sources to your HDTV? Don't worry, we've got that taken care of - head on over to the Sewell 3x1 HDMI Switch.

If you need more cables or a different length, view our HDMI Cable selection.


Mfg. Part Number

  • SW-2701-20


  • Sewell


  • HDMI v1.4 latest generation
  • 30 micron gold plated connectors
  • 28 AWG wires
  • Connectors: HDMI 19-Pin Male / HDMI 19-Pin Male
  • Length: 20 ft
  • HDMI Version: High Speed with Ethernet
  • Supported Resolutions: Up to 1600p
  • UL Certification: CL2
  • Shielding: Copper Braid, Drain
  • 340MHZ /10.2Gbps bandwidth


456 Total Reviews -

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(418) 91.67 %
(23) 5.04 %
(6) 1.32 %
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(6) 1.32 %

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Most helpful reviews

Excellent customer response

fred a - 12/16/2009 2:13:42 PM

4 found this review helpful

Pros: great selection, great pricing

Cons: not always in stock

Other: very responsive customer service. worry-free transaction.

15 ft. HDMI Cable

Anonymous - 2/15/2010 10:57:35 AM

4 found this review helpful

Pros: It appeared to be very good quality. Even has protective plastic end caps. I was satisfied with the picture quality obtained.



HDMI Cable Works

Anonymous - 9/18/2010 8:46:38 AM

4 found this review helpful

Pros: Works as advertised.

Cons: None


See all reviews

Most recent reviews

Best choice by far

- 10/25/2016 1:03:32 PM

This 30' cable was shipped promptly and is of excellent quality.

Very pleased

- 10/20/2016 6:14:42 PM

performs well in distance of 30" attached to another HDMI silverback cable

Excellent Product

Jon - 10/7/2016 1:00:51 PM

Does what it's supposed to. Reliable.

ot works

- 9/2/2016 4:23:19 PM

work like a charm digital work 100% or it does not this works

50ft. HDMI Cable

Intech Computer Repair LLC - 7/20/2016 6:20:14 AM

50ft! Need I say more? Ok I will. The jackets are tough as nails the cable ends look to be terminated with precision and the price was un-beatable.


See all 1 questions


is this the wire and connectors to use to connect my laptop to the tv screen?


As long as your computer and TV both have HDMI on them then yes this cable will work. Otherwise, if your computer only has VGA but your TV has HDMI you will need a VGA to HDMI converter like our SW-9393 or the SW-29073. Or if your computer only has VGA and your TV is not a High Definition TV you will need just a PC to TV conerter like the SW-23000 or the SW-22050.

4 out of 6 found this helpful.

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Silverback S4 HDMI Cable, 20 ft., 4K 30Hz, 1080p 60Hz, High-Speed with Ethernet, ARC, 3D, CL3, Gold-Plated Connectors