Product ID: ST121UTPDVI
The ST121UTPDVI DVI Video Extender over Cat 5 UTP lets you extend a DVI Digital (DVI-D) video signal over Category 5 (or better) cable at distances of up to 150-feet (45-meters) from the video source to the intended display, without sacrificing video quality.
This cost-effective video extender is simple to use and offers a compact form factor, helping to save valuable work space.
With support for resolutions up to 1600x1200, this DVI extender can be easily integrated using existing Ethernet infrastructure wiring, and offers a completely hardware-based solution with no software or drivers required - perfect for any small scale point-to-point digital signage application that requires high quality DVI video.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
|Warranty Information||Warranty||2 Years|
|Connector(s)||1 - Local Unit Connectors||RJ-45|
|DVI-I (29 pin)|
|1 - Remote Unit Connectors||DVI-I (29 pin)|
|Environmental||Operating Temperature||32° to 122° F (0° to 50° C)|
|Storage Temperature||-4° to 158° F (-20 to 70° C)|
|Humidity||15 to 90% relative humidity, non-condensing|
|Cabling||Cat 5 UTP or better|
|Packaging Information||Shipping (Package) Weight||639.0 g [22.6 oz]|
|Package Length||24.4 cm [9.6 in]|
|Package Width||67.0 mm [2.6 in]|
|Package Height||15.5 cm [6.1 in]|
|Performance||Max Distance||45 m / 150 ft|
|Maximum Digital Resolutions||1600x1200 @ 60Hz|
|Physical Characteristics||Weight of Product||285.5 g [10.1 oz]|
|Product Length||67.0 mm [2.6 in]|
|Product Width||52.0 mm [2.0 in]|
|Product Height||38.0 mm [1.5 in]|
|Power||Power Source||2 AC Adapters Included|
|Input Voltage||100 - 240 AC|
|Output Voltage||5 DC|
|Center Tip Polarity||Positive|
|Power Consumption (In Watts)||5|
|Special Notes / Requirements||Note||DVI-A (Analog) signal not supported|
|What's in the Box||1 - Included in Package||DVI Local Unit Extender|
|DVI Remote Unit Extender|
|2 - Included in Package||Power Adapters|
|1 - Included in Package||Instruction Manual|
There are a few things you'll want to take care of before you deploy your new video extender in your setup.
It’s important to make sure you have everything you will need ahead of time. These items are listed below.
It’s also important to test everything in a simplified setup ahead of time to make sure everything works and that you understand how it works.
In order to set up your video extender, complete the following:
Note: Not all video extenders require external power, or require external power on both ends. Refer to the manual for more information.
Now that you have set up your video extender, you can check that everything is working. You should be able to see your video source's output on the display connected to the video receiver.
If at this point you have further questions regarding a Startech.com video extender, contact our technical support team for further assistance.
When you troubleshoot issues with a video extender, 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 and Ethernet cables
Video source (such as a DVD player or computer)
Video destination (such as a monitor or projector)
Note: When you are testing setup components, you should avoid using video adapters. For example, if you are converting a VGA source to HDMI for use with an HDMI extender, you should use an HDMI source when you test the components.
To test your setup components, try the following:
Use the cable, video extender, video source, and video destination in another setup to see if the problem is with the components or the setup.
Use a different cable, video extender, video source, and video 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.
When you test the video source and video destination, it is recommended that you do the following:
Remove the video extender from your setup and test to make sure that the video source and video destination work together without the video extender.
Test to make sure that the video source and video destination work together at the resolution that you want to use.
Note: In order for your setup to work properly, the video source, extender, and destination all need to support the resolution that you are using.
You should only use video converters and extenders if it is absolutely necessary to do so. In many cases, most video converters and extenders are not necessary if you purchase the correct cable.
The following table lists the maximum length of cable for common video standards.
|Video standard||Maximum length|
|DisplayPort||50 ft. (15.2m)|
|HDMI||50 ft. (15.2m)|
|DVI||50 ft. (15.2m)|
|VGA||200 ft. (71m)|
Note: StarTech.com offers cables longer than what is listed above, including active cables, which typically include built-in active signal boosters that allow for longer cables. Active cables are specifically designed to exceed the suggested maximum lengths and are tested at the listed specifications (for example, the maximum listed resolution).
Video adapters passively adapt a cable from one connector type to another. Video adapters do not change the signal type, or change the video standard.
Examples of common applications for adapters include the following:
DVI-I to VGA
RCA to BNC
Mini DisplayPort to DisplayPort
Couplers (female to female, or male to male)
Note: You can use a coupler to extend a cable for a short distance. However, each coupler that you use can introduce signal loss, which degrades the signal quality.
Video converters actively process and change the signal type from one video standard and convert it to another standard. They are typically used to convert digital to analog and vice versa, but can be used to convert a digital signal to another digital video standard (for example, HDMI to DisplayPort).
Video converters work over short distances from the source to the destination: up to 15 feet or 3 meters.
Video extenders convert an input signal to a higher voltage for transmission over longer distances and then convert the input signal back to the original video standard. The input and the output signal will match on a video extender, as the same video standard is maintained end-to-end. If a cable is extended with adapters or converters, the signal quality degrades.
Note: For more information on using a video adapter or converter with a video extender, see the following FAQ: http://www.startech.com/faq/video_signal_converters_convert_then_extend.
If you need to use a video extender with a video adapter or converter, you should position the adapter or converter as close to the video source as possible. For example, if you need to take a VGA signal from a computer and send it 200 feet to an HDMI® projector, you should convert the signal from VGA to HDMI and use an HDMI extender.
Note: For more information on when to use cables or extenders, see the following FAQ: http://www.startech.com/faq/video_signal_converters_when_to_convert.
Digital Visual Interface (DVI) is a video display interface that can contain different types of signaling, based on the application. DVI cables and ports are created using different connector types to identify what application they are intended to be used in. The connector types are identified by the number of pins on the DVI connector. DVI comes in the following five different connector types:
Single and Dual link DVI indicate the maximum resolution capabilities of the video source or video destination. The maximum resolutions are Single Link (1920 x 1080 @ 60Hz) and Dual Link (2560 x 1600 @ 60Hz).
Note: The maximum resolution of your video source and video destination are ultimately determined by the technical specifications of the devices. The connector type is not a definitive indicator of the maximum resolution.
DVI-A carries only analog (for example, VGA) with no digital component. DVI-D carries only digital video (for example, HDMI) with no analog component. DVI-I combines DVI-A and DVI-D connections to include both analog and digital components. A DVI-I port may be on either your video source or display, but whether or not a display carries either or both analog and digital sources depends on the technical specifications of your device.
No, this device is designed to be a point-to-point solution using networking cabling only.
This device has a DVI-I connector, but is only compatible with digital DVI video signaling. For more information about the different DVI connectors, refer to the following FAQ: https://www.startech.com/faq/video_signal_converters_dvi_interface
|VGA||DVI to VGA: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=DVI-D&filter_AVOUTPUT=VGA.|
|DisplayPort||DVI to DisplayPort: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=HDMI&filter_AVOUTPUT=DisplayPort.|