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QED Reference Hi Res USB (A-B) Cable

Enquiry/price check? Click here SKU: QEDREFUAB
Ex VAT: £62.46

RRP: £89.95


Hi Res USB A-B cable that features an integral Ferrite jacket, electrically isolated power conductors and an impedance controlled data lane for cleaner and more accurate audio transmission.

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Condition: Brand new in original retail packaging

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RRP: £89.95


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Warranty length Lifetime
Brand QED Cables

Tech Specs

- Outside Diameter: 7mm

- Characteristic Impedance: 90Ω +/-5%

- Signal Pair Attenuation: < -0.11 dB/m @ 480 MHz

- Propagation Delay: 26 ns max

- Propagation Delay Skew: 68 ps max

- Maximum Data Rate: 480 Mb/s

- Worst-case time-related jitter: <76 ps pk-pk

- Available Lengths: 0.6m, 1m, 2m & 3m

Product Description

QED Reference Hi-Res USB (A-B) cable has been improved upon to deliver greater accuracy, flexibility and compatibility when transmitting HD digital audio between USB audio components like computers, storage devices or high performance DACs with ultra low jitter. 

The Reference USB AB features complete high-resolution audio compatibility, including 32bit, DSD and MQA technology, QED’s Clear Path Audio technology to isolate the power and data lanes within the cable, and improved Impedance Controlled Data Lanes for low-jitter and timing errors.

Ferrite Jacket

QED’s Reference USB features a floating ferrite jacket, which exhibits 50% less jitter than competitor cables that don't have a ferrite jacket. In listening tests, the Reference cable with the ferrite jacket was preferred to samples without the jacket.

Impedance Controlled Data Lane

The USB cable has a 99.9% oxygen-free copper twisted-pair featuring low-permittivity, foamed-polyethylene dielectrics, which is bound by an aluminium/mylar wrap; this design is similar to that used in QED’s high performance HDMI cables. The impedance of the data lane is kept strictly within defined limits, which allows it to exceed the specification given in the USB 2.0 standard by more than half; that results improves the timing error or jitter added to the isochronous data stream is kept to a minimum.

Clean Path Audio Technology

The QED Reference data lanes are uniquely electrically isolated by using a double layer shield comprising a 100% aluminium/mylar wrap and shield braid connected to ground.

Customer Reviews

  • Emil Kajsik

    28 Mar 2018

    Fantastic sounding USB cable,built like a tank and still flexible to suit any system.
    Rapid delivery,great service and knowledge too.


    Thank you Audio Affair.
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