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eFlex Cordage HDMI High Speed with Ethernet Very Low Jitter 3D & 4K Compatible

The new flat and flexible version of the acclaimed QED Performance HDMI is designed to deliver superior video and audio performance whilst being able to fit into confined spaces between the TV and the wall.

The Performance e-FLEX HDMI cable features all of the qualities of our Performance HDMI but with a specially designed 'e-FLEX cordage' to allow the cable to fit in tight gaps between the TV and wall. Because the cable benefits from the application of design secrets uncovered by our state-of the-art HDMI test suite, it delivers very low jitter for accurate timing of picture and audio data. This cable supports Deep Colour, 3D and 4K meeting the requirements of the latest HDMI specification.  Here at QED we are so proud of the level of quality and performance achieved with our cables that we offer a lifetime guarantee. 

Colour Graphite White


Superior Video and Audio Performance

Independently tested to 15.9Gb/s* to deliver High Speed w/Ethernet and HDMI 2.0 specification. Supports Full HD, 3D, 4K and Deep Colour.

Very Low Jitter

Performance e-Flex HDMI measures at less than 50ps of jitter, significantly reducing the incidence of bit errors reaching the TV and maximising the audio and video data transfer.

*QED Laboratory tested 1m length using unequalised pseudo random bit pattern and standard eye mask for TP2 (H = 0.6TBIT V = 335mV)


The e-Flex jacket is comprised of a special PVC compound which makes the cable extremely flexible, enabling it to be used in tight spaces between the TV or projector and the wall.

Shielded for enhanced signal protection

Protects delicate digital signals from interference from high voltage equipment.


99.999% Oxygen Free Copper conductors
Minimum bend radius - 10mm
Minimum clearance - 50mm
3D Compatible
Supports 4k x 2k Resolution
Full HD 1080p60
Deep Colour
HDMI Ethernet & Audio Return Channel
Lifetime Guarantee




DVD player

Digital set-top box

Games console

Home cinema amplifier







AV Amplifier



QED is the only UK manufacturer able to test HDMI cable designs beyond the scope of the current HDMI specification, which means it is uniquely placed to evaluate new technical innovations before deciding whether or not to introduce them into full production. QED has identified cable induced timing error, termed ‘jitter’, as one of the key differentiators between satisfactory and outstanding cables.

These findings have enabled us to optimise transmission speed and jitter performance to ensure that both exceed the high standards we set for our Performance cable range.

Naturally, because QED customers demand better, we have scientifically designed our cables to reduce jitter to the absolute minimum.


The eye diagram above demonstrates that a competitor’s 3m HDMI cable narrowly passes the test and exhibits up to 103 pico seconds (ps) of jitter; enough to allow ‘bit errors’ into the video signal.

The diagram below shows the results of an identical test on a 3m QED Performance e-Flex HDMI cable. The eye is much more ‘open’, showing superior headroom compared with the competitor cable. Importantly, Jitter is reduced to just 66 pico seconds, significantly reducing the incidence of bit errors reaching the TV and maximising the audio and video data transfer.


eFlex Cordage

eFlex Cordage

Incorporates an Ultra Matte PVC jacket to give the cable ultimate feel and flexibility. Only available in matte black or white

HDMI High Speed with Ethernet

HDMI High Speed with Ethernet

Applies to any HDMI cable that has been tested at an authorised test centre and has been found to pass the eye mask test at a combined data rate of 10.2Gb/s 340Mhz pixel clock. The cable must also have passed testing of the CEC and DDC connectivity and be compliant with HDMI Ethernet and Audio Return Channel test procedure.

Very Low Jitter

Very Low Jitter

Jitter is the undesired deviation from true periodicity of an assumed periodic signal in electronics and telecommunications, often in relation to a reference clock source. A cable displaying very low jitter has been measured at
typically 50ps.

3D & 4K Compatible

3D & 4K Compatible

3D = compatible with 3D TVs; cable has a minimum bit rate of 4.45 Gb/s

1080p Full HD = a video resolution with a bit rate of 4.45 Gb/s

4K = Highest native video resolution offered by HDMI 1.4b; 4096×2160p24 36 bit/px = bit rate 8.03 Gb/s

High Speed with Ethernet = 10.2Gb/s so any High Speed Cable supports all these resolutions