They are used to operate two DELL U2713HM to 2560 * 1440.
The old cable were so massively susceptible to interference that my monitors were no longer usable when the phone rang in the next room.
Some of the faults were so bad that the monitor abschaltete completely!
These cables all errors have disappeared.
My theory: If you already affords monitors for that kind of money, but then please also invest the money in proper cable.