SKU: 13441769070

StarTech.com VGA Video Extender over CAT5 (ST121 Series)

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Description

StarTech.com VGA Video Extender over CAT5 (ST121 Series)Designed for professional environments that demand reliable, long distance VGA delivery, the StarTech. com ST121 Series VGA Video Extender over CAT5 is the dependable solution youve been seeking. This compact transmitter and receiver pair makes it possible to place a display, projector, or video wall far from the source without sacrificing image fidelity or timing. Built to endure the rigors of busy offices, classrooms, retail spaces, and conference

Designed for professional environments that demand reliable, long-distance VGA delivery, the StarTech.com ST121 Series VGA Video Extender over CAT5 is the dependable solution you’ve been seeking. This compact transmitter and receiver pair makes it possible to place a display, projector, or video wall far from the source without sacrificing image fidelity or timing. Built to endure the rigors of busy offices, classrooms, retail spaces, and conference centers, the ST121 Series combines a robust metal enclosure with a straightforward, plug-and-play setup. Whether you’re outfitting a conference room for crystal-clear presentations, deploying digital signage across corridors, or creating a multi-room display network, this extender delivers consistent performance, easy installation, and the flexibility to adapt to growing display needs. By leveraging standard CAT5e/6 cabling, you can use existing infrastructure to span distances that would otherwise require expensive runs of specialized video cables, all while preserving color accuracy, sharpness, and clarity across the entire signal path.

  • Long-distance VGA extension over CAT5: The ST121 Series is purpose-built to carry VGA signals over standard CAT5e/6 copper cabling, enabling you to position displays up to substantial distances from the source. This makes it ideal for conference rooms, lecture halls, multi-room control centers, and retail environments where placement flexibility is essential. The result is a clean, professional installation that reduces cable clutter and preserves signal integrity over extended runs.
  • High-resolution support for modern displays: Enjoy crisp, detailed images at common business resolutions. The ST121 Series supports high VGA resolutions—including 1920x1200 (WUXGA) at 60 Hz and 1080p—so you can drive contemporary projectors and monitors with bright color reproduction and accurate geometry. This ensures that presentations, training materials, and multimedia content appear exactly as intended across all connected displays.
  • Plug-and-play installation with no drivers: Designed for fast deployments, the transmitter and receiver connect via standard VGA cables to your source and display and are linked by a CAT5e/6 cable. There are no software drivers to install, and the setup is finished in minutes. LED indicators on the units provide quick status feedback, helping you troubleshoot connection or distance-related issues without tools or expertise.
  • Professional-grade construction for busy environments: Built to withstand everyday use in busy commercial spaces, the ST121 Series features durable housings and reliable connectors. The system is engineered for steady operation in environments where displays must stay up, even during routine equipment movements or reorganizations. Its compact form factor makes it easy to tuck into A/V racks, under desks, or along cable pathways while maintaining a tidy installation appearance.
  • Flexible deployment for single-source, single-display scenarios: The ST121 is designed for a straightforward one-to-one extension—transmitter to receiver—emphasizing dependable performance in classrooms, meeting rooms, and digital signage. For setups requiring multiple displays, you can deploy additional ST121 kits in parallel, ensuring consistent video quality across several zones when the source signal needs to be shared with more than one display at a time.

Technical Details of StarTech.com VGA Video Extender over CAT5 (ST121 Series)

  • Product family: VGA Video Extender over CAT5
  • Model: ST121 Series (Transmitter and Receiver pair)
  • Video input: VGA (HD-15) connector on the transmitter for the source device
  • Video output: VGA (HD-15) connector on the receiver to the display
  • Link cable: Standard CAT5e/6 twisted-pair cable connecting the transmitter and receiver (not included)
  • Distance range: Extends VGA signals over CAT5e/6 up to a practical distance of up to 100 meters (328 feet) under ideal conditions; real-world performance depends on cable quality and installation
  • Resolution support: Compatible with common VGA resolutions, including up to 1920x1200 (WUXGA) at 60 Hz and 1080p displays
  • Power requirements: External power adapters required for both transmitter and receiver units
  • Construction: Durable enclosures designed for professional environments, with indicators to assist in installation and troubleshooting
  • Installation: Plug-and-play with no driver software; standard VGA cables and CAT5e/6 cabling are sufficient

How to Install StarTech.com VGA Video Extender over CAT5 (ST121 Series)

Follow these straightforward steps to deploy the ST121 Series in a classroom, boardroom, or retail setting. The goal is a clean, reliable signal path from your source to the distant display with minimal setup time.

  • Step 1: Prepare the source and display – Ensure the video source (PC, laptop, media player) and the display (monitor or projector) are powered off before connecting.
  • Step 2: Connect the transmitter – Attach a standard VGA cable from the source device's VGA output to the transmitter’s VGA input. This establishes the primary video link into the ST121 transmitter module.
  • Step 3: Link the transmitter to the receiver – Run a CAT5e/6 cable between the transmitter and the receiver. Ensure the cable is routed away from power lines and high-interference equipment for optimal signal quality. Secure the cable along a clean path.
  • Step 4: Connect the receiver to the display – Use another VGA cable to connect the receiver’s VGA output to the display's input. This completes the view path from source to screen.
  • Step 5: Power up – Plug in the power adapters to both transmitter and receiver and switch on. Observe the LED indicators on each unit to confirm a healthy link and correct signal flow.
  • Step 6: Configure the display – Power up the source and the display, then set the display to the appropriate resolution and refresh rate that matches the source output. If needed, adjust the display geometry to ensure the entire image is visible without distortion.
  • Step 7: Test and finalize – Run a few minutes of content to verify color accuracy, sharpness, and timing across the extended link. If you notice any artifacts, check cable seating, ensure the CAT5 cable is of good quality, and verify that both units are securely powered.

Frequently asked questions

  • Q: What resolutions does the ST121 Series support?

    A: The ST121 Series is designed to deliver high-quality VGA video up to 1920x1200 (WUXGA) at 60 Hz and is compatible with 1080p displays, ensuring sharp imagery for modern presentations and multimedia content.

  • Q: How far can I extend VGA using this extender?

    A: A typical extension distance is up to 100 meters (328 feet) over CAT5e/6 cables under optimal conditions. Real-world results depend on cable quality, interference, and routing; shorter runs generally provide the most reliable results.

  • Q: Do I need software or drivers to operate the ST121?

    A: No software or drivers are required. The ST121 is a plug-and-play VGA extender that works with standard VGA sources and displays without additional installation steps.

  • Q: Does the extender carry audio along with video?

    A: No. The ST121 Series focuses on VGA video extension. If you need synchronized audio, use a separate audio channel between the source and the display or an alternative audio-capable solution.

  • Q: Can I connect multiple displays from one transmitter?

    A: The ST121 is designed for a single transmitter to a single receiver in a one-to-one setup. For multi-display configurations, you would typically deploy additional ST121 kits or consider a multi-display solution that supports such architectures.

  • Q: Are CAT5 cables included with the kit?

    A: Cables are typically sold separately. You will need at least one CAT5e/6 cable to link the transmitter and receiver, in addition to standard VGA cables for the source and display connections.

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SKU: 13441769070

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4.0 ★★★★★
Based on 21 reviews
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Product Reviews
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Ashlee
Battle Creek, US
★★★★★ 4
A Decent Fae Romance
Format: Kindle
** 3.5 Stars rounded up to 4 ** First off I want to say that I found the author, J. D. Linton, on TikTok right before the release of the sequel. I bought the first 2 books to support her release, so congrats to her for the release of the sequel! Overall, I liked the story & plot, I liked the characters, and I liked the spice. The downfalls: not enough development between the characters for the romance, and it leaned a little heavy into the tropes. A lot of stuff is told to you, which could have been used as devices to drive the plot and emotions of the characters. 🛑🛑 Mild Spoilers ahead, I tried to hide the obvious ones 🛑🛑 This is very obviously a fated mates, which is a trope I usually really enjoy. But I wish the relationship between Ara & Rogue had much more development before it's realized that they're mates, instead of Rogue knowing almost immediately and using it for nefarious purposes (at least in the beginning before they get to know each other). By revealing this within the first quarter of the book, I feel like it leaves less room for them to fall for each other organically (albeit with help from the mating bond) and they love each other because of the mating bond. I was disappointed as soon as Rogue know (literally only 5% in) and I literally made a note: "As much as II love a good mating trope, I wish we had to work for it a little more. Where's the fun in just telling us?" I believe that by holding out and feeding the reader snippets of a potential bond, it would've been more rewarding as a reader. I also wish there was more world building - we are told of a war between human & fae but don't get to really experience any of it. Ara is sheltered in her human home, then sheltered in Rogue's castle. There's bits and pieces about what the war has done on either side - but we're more told of the aftermath and don't really experience any of it. Ara's father is supposed to be the king's #1 general - yet he is at home with his family & with Ara for the first couple chapters. Her, her family, nor her village seem to be affected by the 10 year war going on on their borders. I wish there was a little more setup to make this conflict - an actual war - feel more than a skirmish between fighting territories. Linton could also be a little repetitive - with the biggest culprit being when Ara is upset she "brings [her] knees to [her] chest]" and either sits like that or cries. Every time she is upset this phrase is mentioned. I would get it if this was her crutch, or how she copes with grief and stress, but that should be explained why she does it so often or it becomes repetitive. I started to get annoyed with how often she would sit like this solely because it happens every couple chapters. However, I did really like the spice. I love an enemies to lovers trope, especially when it results in spicy scenes. The spicy scenes weren't anything new, but they were fun. Wish there were more but that could also just be me - there is no such thing as too much spice 😂 Would I read again? Probably not, I'm super picky with rereads. Although I did genuinely enjoy my first read through! Will I continue the series? Probably, at least for the sequel. As for #3, kind of depends on where I am with my TBR once that is released All in all an enjoyable, fast paced read
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Reviewed in the United States on March 8, 2024
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Ashton Taylor
West Palm Beach, US
★★★★★ 3
I love indie authors
Format: Kindle
Let me preface this by saying—writing a book is HARD! Coming up with characters so real that they take on a life of their own, building an entire world, the political/magic system. Designing all of this is no easy feat. That being said. This book had so. Much. Potential. I was so excited to read this book, and I plan to finish it for the sake of finishing it. But. At this point, I would have set I’d aside as a DNF. The book could have benefited from some form of a developmental editor, or an in depth beta reader. I will say this. Within 5 chapters, there are so many… phrases that I’ve highlight that I’ve latched onto. Phrases about books and storms that were written BEAUTIFULLY! So, bravo Linton for hitting the nail on the head as to why readers disappear like they do! However, 5 chapters in and I can already guess where a majority of the story is going. But that’s also because I read like a mad-woman and have read this particular type of story, many different ways. Enemies to lovers where the FMC isn’t who she thinks she is. I am all about supporting indie authors. BUT. I also feel like criticism should be constructive, and not degrading. So if I could give this book a 4 1/2, strictly because I know the work the author put into this, I would. So if you’re looking for an easy read with characters that aren’t hard to follow, look no further! They are easy to love and easy to care for. One of the biggest issues they lacked, to me, was depth and plausible reactions to their situations. JD, you have done BEAUTIFULLY writing this book. I applaud and will continue to buy your books in the future. My BIGGEST recommendation is to definitely hire some form of an editor for any upcoming books. Or in turn, I will be happy to beta read for you. Should my opinion change of the book by the time I finish, I will happily get on here and say I was wrong, delete this review and post a different one. Until then…
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Reviewed in the United States on November 20, 2022
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Verified Purchase
Hannah Durham
Lake Worth, US
★★★★★ 5
this book set my soul ablaze! <3
Format: Paperback, Format: Paperback
"i had never really cared about the weather before, but now, clear skies meant everything to me, and i was grateful to see another calm morning." this book. this book! i loved the last storm so much. the writing style. the descriptions. the world-building. the characters. the plot twists. the tropes. the sexual tension. the—everything. everything was magic. the last storm follows our two main characters, ara and rogue, giving us dual POV from both characters (which i loved, btw). ara, a human girl who has been locked away in her father’s estate most of her life, just wants to see the world. all she dreams of is seeing what else is out there. but when her father announces her engagement, she knows that dream will become nothing more than just that—a dream. rogue, the fae king, is tired of the attacks being rained down on his people. in hopes of finding out the human king adon’s secrets, rogue infiltrates auryna’s borders. in his last resort to gain information, he visits the local pub. to his surprise, the general’s precious only child is sitting at the bar, drink round after round of mead. now he just needs to figure out how to take her without anyone noticing. first and foremost, let’s talk about the endless list of my favorite tropes and aspects that this book had. ›› enemies to lovers ›› fated mates ›› one bed ›› the chosen one ›› elemental magic ›› actually good and shocking plot twists!!! ›› badass female lead ›› morally-grey love interest ›› fae/human war ›› force proximity ›› touch her and die ›› who did this to you? ›› captor/captive ›› praise k!nk (panting profusely) “you are entirely the opposite of everything that i am, and i would gladly wear your shackles if it meant i could have you.” it’s been a long while since i read a book i liked this much. but i just loved this book. it set my soul ablaze. thank you to the author for writing this beautiful story and for blessing me with an eARC! i loved it so much that i immediately bought the paperback upon release! every aspect of this book was just beautiful. i was blown away by the way the world was described, the way feelings were portrayed, the way the elements were used in the fae’s magic. it just—AHHH! i just absolutely adored it all. i cannot wait for the second book to release next year! also the way he calls her “little storm” sets my heart on fire. this was a fast-paced read and if you are a lover of acotar, fbaa, deal with the elf king, or any other similar books, then please stop everything you’re doing and read this book right now. you won’t regret it. thank you again, jd linton, for giving me the privilege of reading your arc and for blessing this world with the world you created. <3 "something about him pulled me in, like a moth to a flame, and it felt as if i was just waiting for the inevitable burn that came with flying too close to the fire."
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Reviewed in the United States on November 15, 2022
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Sean
Lexington, US
★★★★★ 4
Fun, both heartwarming and heartbreaking
Format: Kindle
Only my second first person written selection, I am still getting used to that aspect, but unlike my first, I enjoyed that the story was told through both MCs. A great enemies to lovers, forced proximity, fated love etc, that resonated to me. There were some small twists that I could see coming, but also a few that I didn’t quite see until the characters were also seeing. Personally, I am more interested in the story than the spice, but with that said, it was well seasoned! I am kind of new to the spice world so I can’t say for sure how this would rate, but it definitely had some heat. I am very glad I happened across this author, and I do plan on also reading the next book….if nothing else, just to see for myself the “transformation” of the characters I’ve grown to love!
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Reviewed in the United States on May 23, 2024
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Verified Purchase
Havinne Akins
Louisville, US
★★★★★ 5
😍😍 BEST DEBUT NOVEL EVER
Format: Paperback
I’m having trouble finding accurate words to describe the way this book made me feel, but I am going to do my best. To start off with basic elements, the character and world building are phenomenal. I feel a strong bond to not only the two main characters, Ara and Rogue, but to each and every character introduced throughout the book. The author did a stellar job of giving each of them unique personhood. All of the scenes are beautifully described. So much so that throughout the entirety of the book, I could see every scene: the towns, the castles, the meadows, the landscape. I have had difficulty with this and with distinguishing between outlying characters while reading in the past, but I did not have to think to remember details of world or character building because they flowed naturally within the story and were described well. I have read book series before that made me want to be a part of that world, but I actually felt like I got to step into Auryna and Ravaryn! The plot twists!! Although this is not a suspense novel, it still had me on a rollercoaster of emotions and on the edge of my seat from beginning to end. I haven’t cried actual tears over a book since I was in high school (and I’ve read a LOT). This book finally broke the floodgates in the final few chapters. Multiple times. And we love a good cliffhanger. It truly made me FEEL. THE SPICE is a solid 3.5/5. Some of the scenes had me flushed, some had me taking notes, some just had my jaw slack and my mouth hanging open. Bravo, JD Linton, bravo. The relationships: friendships, family, romantic, ALL of the relationships in this book have so much meaning. The author does a great job at making you feel the love, the anger, the peace, the frustrations, the safety, the familiarity, etc. between the characters. Ara and Rogue. I can not say enough and I also do not want to say too much. Just know that I feel like I know them both, to their core. I know what their childhood looks likes, their darkest moments, their biggest fears, their dreams and passions, what they want in life… The POV switches were seamless. I am so happy this author decided to let us see from both sets of eyes. I can not wait for book two after that cliffhanger. And there is SO much potential for at least one prequel, I can’t wait to see where this author goes! I hope this series continues and flourishes. Fingers crossed!
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Reviewed in the United States on December 5, 2022

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