Extend a dvi d port by 6in to prevent unnecessary strain on the port the dvidextaa6in 6 inch dvi d port saver cablecoupler avoids expensive repairs to a computer or display it does this by extending the port by 6in thereby eliminating the weight and stress that would typically be placed on the port by a dvi cable this is especially useful in an environment where cables are unplugged and re inserted frequently the 6in dvi d cable supports resolutions of up to 2560x1600 and transmission