Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Home > 
Components > 
Video Cards & Video Devices > 
Video Devices & TV Tuners > 
Item#: N82E16815158139CVF

StarTech ST121EXT VGA over Cat 5 UTP Video Extender / Repeater

Ships from Canada.

Sold and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • VGA Interface

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

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 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 (1,000 feet) between the transmitter and receiver unit. It 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. This allows monitors to be connected at each repeater station, and further extends the overall connection distance by 150 meters (492 feet) per repeater used.

Learn more about the STARTECH ST121EXT




Video Extender
Color: Black

Enclosure Type: Aluminum

Maximum Cable Length: 499.87 ft [152.4 m]

Number of Ports: 1

Remote Unit Connectors: 2 - DB15 High Density Female

Remote Unit Connectors; 2 - RJ45 Female

Cable Type: Category 5 unshielded twisted pair (UTP)

Maximum Resolution: 1024 x 768 @ 500 feet (150m)




Acts as repeater to add 820 feet to total extension distances provided by ST121UTP and ST1214T

Extends video cables by up to 500 ft. (150m)

Provides additional display/drop points for existing Cat5 signal extensions

Provides crystal clear picture quality

Pure hardware design, no software or drivers required

Supports VGA, SVGA, and Multisync monitors
Warranty, Returns, And Additional Information
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
ICON Loading...
ICON Loading...
Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
Selected Items
Are you an E-Blast Insider?
Enter your email address to agree to receive promo codes from Newegg. You can unsubscribe at any time.
Subscribe Newegg e-Blast
Price Available at Checkout
Why can’t we show you details of this product?

Some manufacturers place restrictions on how details of their products may be communicated.

If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.