patency (plural patencies). ( 1 medicine) The degree of openness of a tube, such as a blood vessel or catheter; the relative absence of blockage. ( 2 uncountable) Obviousness; clarity.
Maximum Length: 16' with a standard cable, Up to 50' with a high quality cable. VGA is an analog signal and so as distance increases the quality will decrease. A lot of factors can determine the maximum cable length, but for low resolutions (up to 800x600) you can reach 100 feet and beyond without too much trouble. For mid-range resolutions of 1280x1024/1024x768 you can typically reach somewhere between 50 to 100 feet.
This DELL DMS-59 to VGA splitter cable (Dual Monitor Solution, 59 pins) is used for computer video cards with DMS-59 video outputs. This adapter cable is needed for conversion from DMS-59 (digital) to VGA (analog). It provides two high resolution VGA video outputs from a single connector. The advantage of DMS-59 is its ability to support two high resolution monitor displays, such as two VGA high res analog channels.