i found out today what cable hazro use to test their 30" screens if anyones interested its a belkin cable called
Belkin PureAV Blue-Series DVI Dual-Link Cable comes in 2 sizes from what i have found 1.8m and 3.6m
tech features..
Digital Visual Interface (DVI) Dual-Link provides the brightest, most accurate colours and sharpest detail by transferring data in pure digital form to deliver true high-definition, all-digital video. To obtain the highest possible resolution from DVI technology, a dual-link, 24-pin connection is required. Dual-link provides the convenience of backward-compatibility with AV hardware that is single-link-enabled only.
PureAV HDMI-to-DVI and DVI Dual-Link Cables deliver superior-quality, all-digital, high-definition video. They use silver-plated conductors, five-layer shielding, and precision-formulated dielectric material to ensure a sharp, detailed, vibrant picture.
Main Features:
* 99.99% oxygen-free, solid-copper conductors and high-purity, silver solder joints drastically reduce signal distortion for unrivaled video clarity
* Silver-plated conductors deliver best high-frequency response for optimal resolution
* Five-layer shielding isolates from outside noise for superior clarity
* Precision-formulated, polyethylene dielectric material maintains stronger signals that yield superior video accuracy
* Impedance-matched construction reduces loss and increases bandwidth
* Ferrite inductor block protects against unwanted interference
* Integrated strain relief protects against wire damage for consistently high-quality video
* Abrasion-resistant, flexible PVC jacket maintains integrity, even when bent
* 24k gold-plated connectors create precise contact for low loss
* Non-slip rubber grip and integrated colour-coding provide comfort and ease of install
Manufactuer's Warranty: Belkin Lifetime Warranty
search on google and youll find 3.6m for less than a £10...ignore the places selling above £20-50 as they can be found for under £10.
suppose these must be some of the highest grade iv seen unless someone else can better it
regards..
HRhino"