Splitdeck 4K 8-port HDMI 2.0 Splitter by Sewell – 1×8 Distribution Amplifier, 4K at 60Hz, 3D, HDCP 2.2, 4:4:4 Chroma

(3 customer reviews)


Compatible Devices Television, DVD Player
Connector Type HDMI
Item Dimensions LxWxH 14.5 x 6.75 x 3.25 inches
Brand Sewell
Item Weight 0.2 Pounds

  • IMPORTANT: Your source device will only output the highest resolution that ALL connected displays will support when using this splitter.
  • Supports up to 4K2K at60Hz and HDCP 2.2
  • Supports HDMI 2.2 including 3D and Deep Color 24bit, 30bit, 36bit
  • Digital Audio format, as DTS-HD/Dolby-trued/LPCM7.1/dtx/Dolby-AC3/ DSD
  • Splits a single HDMI source to up to Eight HDMI HD displays


Product Description

Sewell Logo


SplitDeck 1×8 HDMI Splitter

The Splitdeck HDMI splitters support full HDMI 2.0 specs, meaning resolutions up to 4K@60Hz, 4:4:4 Chroma, and HDR. This means the SplitDecks can send a signal with those specs to 2, 4 or 8 HDMI displays.


box contents

Distribution Amplifier

Note:All SplitDecks are HDCP compliant which means that they do not strip or bypass HDCP. The SplitDecks support all versions of HDCP up to HDCP 2.2.

The SplitDeck is an active splitter which amplifies and equalizes the input signal in order to perform at maximum spec. The signal amplification lets you use longer HDMI cables and achieve optimal results. This also means that if you are running multiple displays with different resolutions, the splitter will send the lowest “common” resolution to all displays.

For example: If you have a 4k and a 1080p TV, the splitter will send 1080p to both unless you use a downscaler between the splitter and the 1080p TV to “trick” the Splitter into thinking both displays support 4k.

Additional information

Weight 3.2 kg
Dimensions 14.5 × 6.75 × 3.25 cm
Product Dimensions

14.5 x 6.75 x 3.25 inches

Item Weight

3.2 ounces



Item model number


Date First Available

October 6, 2016

Country of Origin



Sewell Development Corp. dba Sewell Direct

3 reviews for Splitdeck 4K 8-port HDMI 2.0 Splitter by Sewell – 1×8 Distribution Amplifier, 4K at 60Hz, 3D, HDCP 2.2, 4:4:4 Chroma

  1. Woodrow

    Unlike prior Sewell Splitters, this one Blinks when Displays turn On and Off! Dissapointing.We have been using Sewell products for a very long time, and we have always been very happy with them overall. Generally the only real weakness to Sewell HDMI splitters is that the output ports are a bit under powered, which causes longer runs to suffer blinks at times, but this is a general challenge with most if not all splitters. We had high hopes for this 4K splitter as it seems to be the best value on the market right now for full QHD splitters, however after less than one hour using this splitter, we pulled it out of production due to one glaringly obvious weakness. Everytime you turn any single Display (TV) on or off, all other displays blink off for a couple seconds before coming back on. This is regardless of the type or capability of the display as we have over a dozen different displays we tested with. Furthermore, this splitter, unlike prior Sewell products, is not capable of sending a signal over certain directional cables, even at a lower 1080p resolution, when all prior Sewell splitters work on those cables without challenge. Bummer. The blinking is the obvious non-starter. Here is hoping Sewell figures this out.

  2. MIP

    After running 7 cables from this box to different 4K …After running 7 cables from this box to different 4K HDR TVs, I found out it does not in fact pass through HDR10 or Dolby Vision. I ran the source which was a Sony X800 4K player directly to each model and the player is in fact sending out the HDR10 format, the splitter was just bottle necking it. It did however send the HDR signal that a HDR Blu Ray was playing, so the TVs would default to that color space (BT.2020), but it was trying to spread out the DCIP3 color space it was in fact getting into HDR, leaving the color tones all out of whack when displayed. I went through the troubleshooting steps to no avail. Just a heads up, if you want to pass HDR10, this will not support it on Sony, Samsung, or LG TVs.

  3. David P.

    Terrible ProductAs has been said, this product is terrible. Very unstable. With 4 outputs, I could never get it to quit blinking. Very disappointed, and big waste of time. Do not buy.

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