Hdmi gold cable 27 gbps
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Monster Cable Premium Black 27.7 Gbps high bandwidth HDMI 2.0 cable test
No two cables are the same, mechanically or electrically. What is undeniable with copper cables is the requirement of higher specification cable assemblies to meet higher bandwidth requirements. Anyone who thinks otherwise is grossly misinformed. This is the case with many types of cables whether they be coaxial cables for RF signals, twisted pair copper for data or telephony transmission.
While typical bandwidth uses (versus maximum) for a HDMI cable works just fine on many cheap "$5" High Speed HDMI cables, we come to a turning point for HDMI 2.0 Compliance. Some existing HDMI High speed cables may handle the new 18 Gbps rating for HDMI 2.0 but it all depends on the quality. Cheaper cables may be only tested at shorter lengths or minimum requirements.
To prove this, Monster Cable demonstrated their cable testing station to NitroWare at a media briefing event in Sydney, comprising of several clock generator devices to replicate the aggregate 18 Gbps bitrate in a HDMI 2.0 Signal , which is then fed though a HDMI cable of choice (cable under test) to a Tektronix Digital Signal Analyzer which provides a graphical representation of the quality of the clock signals using an industry standard eye diagram. We did not notice any 'funny business' in the test rig itself or the test procedures.
A Dell Laptop connected to the test jig serves as an auxiliary display as well as a test controller and results analysis/statistics station, which only only provided analysis and control for the Eye pattern test in software but also for the bit error rate test
The test comprised of a A-B comparison of Monster Cable's Premium Black 27.7 Gbps high bandwidth HDMI 2.0 cable versus a selection of locally sourced/branded HDMI cables.
Without prior knowledge we brought our own used $5 HDMI 1.4 High Speed cable sourced from a Sydney Electronics supplier to the media briefing and proposed to have our cable tested on the measurement jig (for fairness) After some convincing, the staff from Monster Cable USA and their AUS distributor had no qualms, being ultra confident in their product.Our own cable failed testing at 18 Gbps, with high of noise/errors at this bandwidth as shown in our video.
Our video of the HDMI 2.0 Eye Pattern and Bit Error Rate test, including equipment description as well as an interview with Monster cable is below.
The moral of the story is regardless of the vendor you chose to source your HDMI cables from, there is claimed performance and actual performance. While a cable might be fine at legacy 'High Speed' it is not guaranteed to, or might it be tested handle higher bandwidths it may not be designed or able to handle a higher bandwidth. You get what you pay for.