Cosemi has announced its first OptoDP active optical cable that supports a DisplayPort 1.4 connection. That in itself isn't newsworthy, but up to 328 feet, or 100 meters, it seems rather interesting. The cable supports resolutions up to 8K60 4:4:4 at 60 Hz and is designed for users who need to connect ultra-high-definition displays/TVs or projectors to sources located far away.

Compared to DP 1.3, which supports up to 4Kp120 and 8Kp30, DP 1.4 can enable Display Stream Compression 1.2 and Forward Error Correction, despite no difference in bandwidth between the two standards. This allows DP 1.4 hardware to support 7680×4320 resolution with 4:4:4 chroma subsampling at 60 Hz with 10-bit color and HDR (as well as 4Kp240) over a ~25.92 Gbps interconnection. Cosemi’s OptoDP active optical cable guarantees DP 1.4 signal integrity at the length of up to 100 meters without any additional external power. 

Cosemi demonstrated the work of its cable with 8Kp60 resolution at the Optical Fiber Communication Conference and Exhibition (OFC), with the National Institute of Information and Communications Technology (NICT) and TechnoAP. Keep in mind that the showcase was focused on demonstration of signal integrity and not on an actual 8Kp60 display with appropriate content.

OptoDP Active Optical Cable Key Features
  Cosemi OptoDP1.4
Material High-Speed Fiber Optics
Bandwidth (theoretical/actual) 32.4/25.92 Gbps
Maximum Resolution 7680×4320 resolution with 4:4:4 chroma subsampling at 60 Hz
(with DSC enabled)
Length 100 meters/328 feet
DisplayPort Version 1.4

Technically speaking, there are DisplayPort 1.3-compliant active optical cables supporting up to a ~26 Gbps bandwidth. However, Cosemi’s cable is extremely long and the company has demonstrated that it works. Before coming to a commercial product, the cable will actually get an official DP 1.4 certification.

Cosemi said that it would start production of OptoDP active optical cables shortly. In addition, the company is prepping an active optical USB Type-C cable that would enable DisplayPort 1.4 over USB-C interconnections at long distances. The manufacturer said nothing about pricing of its cables, but given that we are talking about a 100-meter active optical solution for prosumers as well as cinemas, they will everything but cheap. For example, a 30-meter active optical DP 1.3-compliant cable retails for $799.99.

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Source: Cosemi

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  • Railgun - Thursday, March 30, 2017 - link

    What the hell does a 3x shorter length cable of a completely different technology have to do with this?

    However, I get your point.
  • p1esk - Thursday, March 30, 2017 - link

    The article mentioned 30m cable for $800, so that's what I'm comparing to. As for technology, the Cisco cable is designed to be almost twice faster.
  • lazarpandar - Wednesday, March 29, 2017 - link

    I don't actually see anybody complaining.. so please get off your high horse. You're arguing against nobody.
  • SirMaster - Thursday, March 30, 2017 - link

    It is expensive for what it is.

    $800 for a 328ft optical DP with 25.92gbit/s while you can get an 18gbit/s 330ft optical HDMI for only $135.
  • p1esk - Thursday, March 30, 2017 - link

    It's $800 for 30m cable. 100m is likely to be more expensive.
  • zodiacfml - Wednesday, March 29, 2017 - link

    LOL, I thought this is going to be $800. I guess, twice that.
  • Xajel - Thursday, March 30, 2017 - link

    Oooh, cool, Now I can keep my gaming PC at home while I'm in my brother's house next to me.. no damn, I'll need another cable for USB as the Logitech wireless can't reach that range.

    But really, If these cables ( at least the HDMI ones ) will become cheaper then they will be good alternative to HDMI over Cat6 solutions we're using to connect the PC's to living room TV's.
  • willis936 - Thursday, March 30, 2017 - link

    I did this for a two years starting five years ago. First box didn't work. Second box worked but signal still dropped link once every few hours. 100 foot cat 5 unshielded.
  • willis936 - Thursday, March 30, 2017 - link

    1080p 60. The box was $50 (I think. Maybe $80 idr).
  • dstarr3 - Thursday, March 30, 2017 - link

    I doubt these are in-wall rated.

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