VGA over Cat 5 UTP Video Extender Repeater
Add 1 or 2 displays to your VGA over Cat5 extension
Product ID: ST121EXT
- Acts as repeater to add 1000 feet to total extension distances provided by ST121UTP and ST1214T
- Extends video cables by up to 1000 ft. (305m)
- Pure hardware design, no software or drivers required
- Provides additional display/drop points for existing Cat5 signal extensions
- Supports VGA, SVGA, and Multisync monitors
- Provides crystal clear picture quality
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Overview
The ST121EXT VGA over Cat 5 UTP Video Extender Repeater allows you to further extend your VGA signal over Cat5 or better cabling. This device is specially designed for use with the StarTech.com ST121 VGA Video over Cat 5 extender series, which is comprised of a transmitter unit (ST1214T, ST1218T or ST121UTP) and an ST121R receiver unit.
The ST121EXT VGA extender repeater adds to the overall extension distance capability, for a total of 300 meters (1000 feet) between the transmitter and receiver unit and also features a VGA output allowing you to connect an additional display at the mid-point of your setup.
For even more versatility, up to three ST121EXT repeater units can be used between the transmitter and receiver units, allowing monitors to be connected at each repeater station while further extending the overall connection distance by 305 meters (1000 feet) per repeater used.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
- Cat5 extension design allows you to make use of existing Cat 5 or better wiring infrastructure
- Extends the connection distance of VGA displays by up to 500 feet (150 meters) offering flexibility in the placement of your equipment
Applications
Place the display in a convenient viewing area, while the system equipment is placed elsewhere in a clean and secure environment
Ideal for digital signage applications in financial, educational, and business sectors
Extend your display across harsh environment industrial sites
Perfect for video conferencing solutions in boardrooms and office settings
Optimize placement of your demo stations at tradeshows and in auditoriums
Technical Specifications
Product Numbers | ||
---|---|---|
TechData Dis | 10547365 | |
ASI | 87587 | |
Ingram Micro USA | N72332 | |
Synnex US | STA-ST121EXT | |
UPC Code | 065030824439 |
Warranty Information | ||
---|---|---|
Warranty | 2 Years | |
Hardware | ||
Cabling | Cat 5 UTP or better | |
Daisy-Chain | Yes | |
Ports | 1 | |
Performance | ||
Max Distance | 305 m / 1000 ft | |
Maximum Analog Resolutions | 1024x768 @ 500ft(150m) | |
Connector(s) | ||
Remote Unit Connectors | 2 - RJ-45 Female | |
2 - VGA (15 pin, High Density D-Sub) Female | ||
Power | ||
Center Tip Polarity | Positive | |
Output Current | 0.6A | |
Output Voltage | 9 DC | |
Power Consumption (In Watts) | 5.4 | |
Power Source | AC Adapter Included | |
Physical Characteristics | ||
Color | Black | |
Enclosure Type | Aluminum | |
Product Height | 0.8 in [20.6 mm] | |
Product Length | 4.1 in [103 mm] | |
Product Weight | 7.2 oz [204 g] | |
Product Width | 2.5 in [64 mm] | |
Packaging Information | ||
Shipping (Package) Weight | 1.4 lb [0.6 kg] | |
What's in the Box | ||
Included in Package | 1 - Remote Unit VGA Extender | |
1 - 9V AC 500ma Adapter | ||
1 - Instruction Manual |
Accessories
VGA over CAT 5 Remote Receiver for Video Extender
Extend and distribute a VGA signal to up to 4 displays over Cat5 cable
2 Port VGA over Cat5 Video Extender – Transmitter
Extend and Distribute a VGA Signal to 2 Displays over Cat5 Cable
4 Port VGA Over CAT5 Video Extender - 450ft (150m)
Extend and distribute a VGA signal to up to 4 displays over Cat5 cable
8 Port VGA Video Extender over Cat 5
Extend and distribute a VGA signal to up to 8 displays over Cat5 cable
16 Port High Resolution VGA Video Splitter - 400 MHz
Split a single high resolution VGA video signal to 16 monitors or projectors
2 Port High Resolution VGA Video Splitter - 350 MHz
Split a single high resolution VGA video signal to 2 monitors or projectors
2 Port High Resolution VGA Video Splitter with Audio - 400 MHz
Split a single, high-resolution VGA video signal with audio to 2 monitors or projectors
4 Port High Resolution VGA Video Splitter - 350 MHz
Split a single high resolution VGA video signal to 4 monitors or projectors
8 Port High Resolution VGA Video Splitter - 300 MHz
Split a single high resolution VGA video signal to 8 monitors or projectors
Cat5e Patch Cable with Snagless RJ45 Connectors - 25 ft, Blue
Make Fast Ethernet network connections using this high quality Cat5e Cable, with Power-over-Ethernet capability
Cat5e Patch Cable with Snagless RJ45 Connectors - 50 ft, Blue
Make Fast Ethernet network connections using this high quality Cat5e Cable, with Power-over-Ethernet capability
75 ft Cat5e Blue Snagless RJ45 UTP Cat 5e Patch Cable - 75ft Patch Cord
Make Fast Ethernet network connections using this high quality Cat5e Cable, with Power-over-Ethernet capability
Cat5e Patch Cable with Snagless RJ45 Connectors - 100 ft, Blue
Make Fast Ethernet network connections using this high quality Cat5e Cable, with Power-over-Ethernet capability
6 ft Coax High Resolution Monitor VGA Video Cable - HD15 to HD15 M/M
Connect your VGA monitor with the highest quality connection available
10 ft Coax High Resolution VGA Monitor Cable HD15 M/M
Connect your VGA monitor with the highest quality connection available
15 ft Coax High Resolution Monitor VGA Cable - HD15 M/M
Connect your VGA monitor with the highest quality connection available
2x2 High Resolution Matrix VGA Video Switch
Share two distinct VGA input source signals between two displays or projectors
2x4 High Resolution Matrix VGA Video Switch
Share two distinct VGA input source signals between four displays or projectors
Product Support
Drivers & Downloads
Manual(s):
-
ST121R_121xT_EXT_Manual.pdf
English
Compliance Letter(s):
Data Sheet(s)
- ST121EXT_Datasheet.pdf
English
Frequently Asked Questions
Before You Buy
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
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
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
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.
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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.
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No, this device is designed to be a point-to-point solution using networking cabling only.
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This device outputs a VGA signal. If you have a display or video destination that uses another type of video connection, there are ways that you can convert the video signal or connection. These options are outlined below and organized by the target connection.
Target connection | First conversion | Second conversion (if required) |
DVI-D | VGA to HDMI: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=VGA&filter_AVOUTPUT=HDMI. | HDMI to DVI-D: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=VGA&filter_AVOUTPUT=HDMI. |
DVI-I | VGA to DVI-I: https://www.startech.com/Cables/Audio-Video/Video-Adapter/DVIVGA/. | N/A |
HDMI |
VGA to HDMI: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=VGA&filter_AVOUTPUT=HDMI. |
N/A |
DisplayPort | VGA to HDMI: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=VGA&filter_AVOUTPUT=HDMI. | HDMI to DisplayPort: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=HDMI&filter_AVOUTPUT=DisplayPort. |
Note: You might need to use more than one converter as part of your solution; however, you should try to use the least number of converters and cables to connect your source and destination. If you have the option to convert to multiple target video connections, choose the option that requires the fewest number of conversions.
DVI-I and DVI-D
When you convert from VGA to DVI, you need to know if you are converting to a DVI-I or a DVI-D connection. For more information about how to identify the type of connection that you need, refer to the following FAQ: https://www.startech.com/faq/video_signal_converters_dvi_interface.
You also need to know which form of DVI that you are using, because DVI-I supports both analog (VGA) and digital (HDMI) signals, while DVI-D only supports digital (HDMI) signals.
Note: Certain devices may have a DVI-I connection but only support DVI-D signaling. It is important to verify that your DVI-I device supports DVI-I signaling.
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Installation
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.
- Transmitter
- Receiver
- Video source
- Display
- Video cables
- (Optional) Ethernet or fiber cables
- (Optional) Power adapter(s)
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:
- Position your video transmitter near your video source.
- Connect the video output from your video source to the video transmitter.
- (Optional) Connect the power adapter to the video transmitter.
Note: Not all video extenders require external power, or require external power on both ends. Refer to the manual for more information.
- Position your video receiver near your display.
- Connect the video output from your video receiver to your display.
- (Optional) Connect the power adapter to the video receiver.
- If using a wired video extender, connect your network cabling between the video transmitter and the video receiver.
- (Optional) If you are extending anything else supported by your video extender connect those devices to the transmitter and receiver.
- (Optional) If you are using a wireless extender, there may be a sync button you need to press to pair the transmitter and receiver.
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.
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Troubleshooting
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 extender
-
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.
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* Product appearance and specifications are subject to change without notice.
* Same day shipping is only available for orders shipping within the United States.
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VGA over Cat 5 UTP Video Extender Repeater
Product ID: ST121EXT
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