35 ft Coax High Resolution Monitor VGA Cable with Audio HD15 M/M

Questions & Answers

Everything is hooked up but nothing is working. What should I do?
When you troubleshoot issues with a VGA cable, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue: Video cables Video source Video destination To test your setup components, try the following: Use the video cables, source, and destination in another setup to see if the problem is with the components or the setup. Use a different video cable, source, and destination in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup. When you test your cables, it is recommended that you do the following: Test each cable individually. Use short cables when you are testing. There are several issues that could be causing you to experience an issue with the color on your VGA display when you use a StarTech.com VGA cable. Issues with the color include an image that is a solid color or is missing colors (typically red, green, or blue). To prevent issues, make sure that the following is true: The cable is tightly screwed into each of the ports. The female connectors/ports are free of debris or anything that may prevent electrical conductivity. No pins are bent or missing in male VGA connectors/ports. Note: VGA cables come in 14-pin and 15-pin variants. For more information about VGA cables, refer to the following FAQs: 14 pin FAQ: http://www.startech.com/faq/vga_cables_14_pin_vs_15_pin_14_pin_version . 15 pin FAQ: http://www.startech.com/faq/vga_cables_14_pin_vs_15_pin_15_pin_version .

When should I use a longer video cable instead of a video extender?
Use a longer video cable whenever possible; use a video extender only when the required distance exceeds the reliable limits of standard or active cables. Explanation: Direct cabling is the preferred method for video connections because it maintains signal integrity and reduces complexity. Standard maximum cable lengths for common video signals are: Video standard Maximum length DisplayPort 50 ft. (15.2m) HDMI 50 ft. (15.2m) DVI 50 ft. (15.2m) VGA 200 ft. (71m) Active cables can extend these distances by incorporating built-in signal amplification and are designed to exceed standard length limits while maintaining specified performance. Video extenders are used when cable length requirements exceed what passive or active cables can reliably support. Extenders transmit the signal over longer distances by boosting and then restoring it, while maintaining the same video standard from input to output.

Why does some VGA cables not include pin 9, while other VGA cables do?
There are two common VGA cable configurations: 14-pin VGA cables and 15-pin VGA cables. In earlier VGA standards, pin 9 was removed because its original function became obsolete and was not required for most monitor connections. As a result, many VGA cables were manufactured with only 14 connected pins. Modern 15-pin VGA cables may include pin 9 because it can provide low-voltage power for Display Data Channel (DDC) communication between the display and the computer. DDC allows the display to communicate information such as supported resolutions, refresh rates, and display identification data. Most computer monitors function correctly with a 14-pin VGA cable. Some televisions, specialty displays, or devices that rely on DDC communication may require a 15-pin VGA cable with pin 9 connected. To determine which VGA cable type is required, check the specifications for the display and video source device.

Why does this VGA cable have pin 9 while others are missing it?
There are two types of VGA cables: 14-pin and 15-pin. 14-pin cables will work in most applications, but 15-pin cables may be required for wider display compatibility. This product is a 15-pin VGA cable. Pin 9 was removed from 14-pin cables because the key signal became obsolete with modern computer monitors and was no longer used in the default applications of the VGA standard. However, Pin 9 has recently been reintroduced as a power supply pin to power circuity in certain displays. This pin does not power an entire display, but it is required for data communication between the display and the computer. The data communication between the display (Display Data Channel or DDC) communicates display information such as maximum resolution and the name of the display. If you are unsure which cable type you require for your application, you can check the manufacturer specifications. Typically, computer monitors only require 14-pin cables and televisions require 15-pin cables. If you require a 14-pin VGA cable, see the following FAQ: http://www.startech.com/faq/vga_cables_14_pin_vs_15_pin_14_pin_version .