FURUI Fiber HDMI Cable 30ft 4K 60Hz, Fiber Optic HDMI 2.0b Cable HDR10, ARC, HDCP2.2, 3D, 18Gbps Subsampling 4:4:4/4:2:2/4:2:0 Slim and Flexible HDMI Fiber Optic Cable - 10M

An HDMI Cable That Actually Passes True 4K HDROn March 22, 2019 I purchased a 25’ FURI fiber optic HDMI 2.0b cable to connect my Onkyo RZ820 receiver to my Vizio P75 TV mounted on the wall across the room which required a 25’ HDMI 2.0 cable. Connected to the Onkyo’s HDMI inputs are two 4K HDR sources, an Oppo UDP-203 Ultra HD Blu-ray player and the Amazon Fire 4K TV Stick. Before I moved the receiver to the other side of the room, everything worked perfectly with a 10’ High Speed HDMI 2.0, HDCP2.2, 18Gbps cable.When you are using relatively short cables, 15’ and under, the length of the cable will usually not cause noticeable signal degradation and some even say you can go up to 20’. I have tried several 25 and 30 foot cables including the Monoprice High Speed Active HDMI Cabernet Ultra Series, a High Speed HDMI cable by KabelDirekt and this cable and none managed to fully support full 4K HDR with Dolby Vision. I returned this cable, posted a review and the company contacted me immediately wanting to know a bit more about my issues with the cable. After a brief exchange of letters they sent me a replacement cable and I have to say it is working perfectly for several weeks now, the picture is gorgeous. Watching “The Expanse” in 4K UHD on Amazon Prime looks great and “The Gladiator” in 4K HDR/Dolby Vision on Blu-ray looks spectacular!The first FURI cable had “handshake” (which I explain below) issues with my receiver which did not allow it to pass the video signal when I enabled Full UHD on my TV while the replacement cable had no such problem. The new cable works as advertised passing 4K @60Hz with full HDR including Dolby Vision from the Amazon Fire TV 4K as well as 4:2:2 and 4:4:4 from my Oppo UDP-203.What I also appreciate about this cable is how thin and flexible it is. By not having to use heavy gauge wire to carry the video data substituting thin fiber optic cables instead, this cable is very easy to work with and especially easy to hide in narrow channels. Be careful not to pull/stretch it or bend it excessively as you could damage the very fine fiber elements inside it. FOR THOSE WANTING TO KNOW MORE ABOUT HDMI CABLES, 4K AND HDR CONTINUE READING…..When I was first shopping for an HDMI cable, I really didn’t know what all the numbers and specifications meant and why they mattered. Here is a brief primer to help you understand what it all means.4K refers to how many pixels are on a screen while HDR (High Dynamic Range) indicates the range of brightness to darkness that those pixels can cover either by having brighter highlights, darker black areas, or a combination of the two. UHD or "Ultra-High-Definition Television" is an industry specification that combines the two (plus some additional features) into an easily recognizable term.Consumer video is stored, transmitted, and processed in a color space called Y’CbCr. The three components stand for: Y’ = Luminance, or brightness of the pixel, Cb = Blue color difference andCr = Red color difference. There are three main types of color subsampling used today. These are 4:4:4, 4:2:2 and 4:2:0.If 4:4:4 is a full bandwidth signal, then 4:2:2 occupies 2/3rds the space and 4:2:0 occupies 1/2 the space. Blu-ray and UHD Blu-ray both store the video signal in the 4:2:0 format on the disk. When that disk is played by the player, it is upconverted to 4:2:2, which is sent through the HDMI cable to the display which upsamples the signal to 4:4:4 and converts to it RGB. Why does the display do most of the upconversion (4:2:2 to 4:4:4 to RGB), this reduces the HDMI bandwidth requirements. If you have a Home Theater Receiver between them, it just passes the signal though some may process the signal if your player or TV can’t perform this function.There are several types of HDR formats: HDR10, HDR10+ (Samsung’s answer to Dolby Vision), Dolby Vision and HLG. All “HDR” devices support HDR10 while support for the other formats is manufacturer specific. Right now, virtually all companies also support Dolby Vision and HLG with only Samsung refusing to do so. As their Blu-Ray players only supported HDR10, sales were mediocre and as of February, 2019, Samsung says it won't produce any new 1080p or 4K Blu-ray players for the US market.Dolby Vision seems more focused on pushing HDR to its technical limits than HDR10. Dolby Vision uses frame-by-frame metadata (Metadata is data sent along-side the image portion of an HDR signal that gives the monitor extra instructions about how to display the video adjusting brightness levels and color range) to manage HDR performance, significantly increasing the amount of data that passes through the cable. Dolby Vision content is mastered in 12-bit color depth, compared to HDR10's 10-bit (which is where HDR10 gets its name from). UHD Blu Ray is also 10 bit when it reaches the display and most newer consumer TV displays use 10-bit panels.In order for this all to work properly every component in the system has to communicate it’s design parameters and capabilities so they are all on the same page which requires the exchange of metadata between them. HDMI handshaking is a process that occurs between sources and display which does just that, when it works, your video and audio signals are properly passed through the HDMI cable. Many cable “failures” are due to handshake errors which will result in audio or video signal failures.Inside every HDMI cable, there is a pair of wires for DDC - Display Data Channel (pins 15 and 16). The DDC carries two kinds of data: HDCP (the copyright data) and EDID, Extended Display Identification Data, in metadata format for display devices such as TV’s to describe their capabilities to video sources such as Home Theater Receivers, Streaming Devices, Blu-ray Disc players, and even gaming consoles. This allows the video sources to then send out a video signal that is supported by the display. If the data passing through these two wires is corrupted or under the specified voltage (5 volts DC +/- 0.3) you may not be able to get a decent picture, the correct resolution or any picture at all. So it is important that every connection inside the cables connecting your equipment functions properly. In longer length standard cables there may be a voltage drop and if it goes below 4.7 volts DC, there may be handshake issues which could impact the audio and/or the video signal as well as degrade the high data rate Y’CbCr video signals passing through them. By replacing heavy gauge copper wires with slim fiber optic conductors, signal loss issues are greatly decreased.Hopefully, this additional information will help you understand not only what the HDMI standards are but also give you better insight into how to set up your various devices. If anyone has any further questions please ask.Art

Update: I upgraded the rating because of the customer service I received. I received email from Maria at Furai and was offered a replacement cable at no cost. She followed up and kept in touch until the cable was delivered. That is good customer service ! I am pleased.I liked the concept of this cable. I was easy to pull through a duct and connect to an overhead projector. The picture quality is good. But it stopped working after about 5 months of use. The connector overheat and display stops working. The only way to contact seller is through Amazon and there has been no response.

First, I have had 2 of 3 cables fail, first in 1 week, 2nd in 3 months. They were used in a light duty office conference room and connected 3-4 times a day. The plan was always to install a sacrificial extension, but it wasn't ready and we wanted to use the shiny new 4K projector. Shame on us, the cable died quickly as it was repeatedly connected. "Normal" cables lasted a year or more for reference, so this was surprising, but not a deal breaker. The 2nd one was secured below the table to an extension, but it still had some flex as the extension cable was moved around and it eventually failed as well. I routinely work with cable relief and motion professionally and would rate the job by our maintenance guy as a B, which apparently is not enough for this applicationI was buying more when I noticed the 6yr warranty in the picture. No one has 6 year warranties on cables or would be around to honor them, but I figured a quick email wouldn't hurt. 15 minutes later, I had 2 replacement units being shipped! I have never had this kind of painless experience and have dealt with my share of defective or broken products.Lesson learned, these things are quite fragile and the next units will attach to a table mounted receptacle box. I have already purchased 2 more for other rooms (including one of the "pro" units) and hope they have a long service life. Also, if you haven't seen the note on directionality yet, you are warned. Our maintenance guy didn't see it and had to re-pull the cables.4 stars with 2 failures is generous and the product may benefit from some improvements, but for single attach home use, they should be fine.

Update 07/11 - we sent email to the manufacturer and they responded immediately saying they will be sending replacement. Received replacement in less than 2 days. Manufacturer responded very quickly. Happy with the customer service. New cable received is working very good now. We will definitely consider buying from this seller in future if any other cables are required.We bought 50ft cable on Jan 2019 to connect our projector and was working good for few months. Then we started to get no input /no signal on the screen. When we turn off and then turn on it works good. We never had a doubt on the cable. Otherwise would have called seller immediately. Now the screen is completely gray. Then we used our old cable to check whether this is cable issue and we are 100%right.. We paid $150.00 for this cable and I am totally disappointed.