Log in / register My Account
$0.00
StarTech

StarTech.com VGA Video Extender over Cat5 (ST121 Series)

$132.21
$113.16 SAVE $19.05
15 availableas of 09/19/2026

Order within for shipment today

Should arrive by Thu, Oct 1 with free ground shipping

Compliance, certifications and origin

  • TAA compliant
  • EU RoHS
  • RoHS
  • WEEE
  • REACH
  • Origin: Taiwan
Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Protect this device

Plans are optional and can be left off. Your order is unchanged unless you add one.

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

The ST121UTP VGA Video Extender over Cat5 allows you to extend your VGA video signal by up to 150 meters (500 feet) and connect up to 4 displays (2 local and 2 remote) from that single source. The ST121UTP is a bundled kit including both a local transmitter and a remote receiver unit, offering a complete solution for scenarios in which remote monitor displays are required.

The local unit features a single VGA input as well as two VGA outputs giving you the ability to view and split your source VGA signal to two independent displays locally. The VGA video signal is then sent over standard 4 pair Category 5 or better UTP cable to the remote unit which also features two additional VGA outputs giving you the freedom to display your VGA source on up to four monitors in total.

The included a mounting bracket for the ST121UTP receiver provides versatile mounting options such as a wall, desk or cabinet.

This product is TAA compliant and backed by a Startech.com 2-year warranty with free lifetime technical support.

More from the Manufacturer

More from the manufacturer

Technical specifications

General Information

Manufacturer StarTech.com
Manufacturer Part Number ST121UTP
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name VGA Video Extender over CAT5 (ST121 Series)
Product Type Video Extender Transmitter/Receiver

Technical Information

Connectivity Technology Wired
Number of Input Devices Supported 1
Number of Output Devices Supported 4
Maximum Operating Distance 500 ft

Video

Graphics Modes SXGA
Maximum Video Resolution 1280 x 1024

Interfaces/Ports

Network (RJ-45) Yes
Number of Network (RJ-45) Ports 2

Media & Performance

Media Type Supported Twisted Pair
Twisted Pair Cable Standard Category 5e

Physical Characteristics

Transmitter Height 0.80"
Transmitter Width 3.30"
Transmitter Depth 2.40"
Receiver Height 0.80"
Receiver Width 3.30"
Receiver Depth 2.40"
Transmitter Weight (Approximate) 11.82 oz
Receiver Weight (Approximate) 11.82 oz

Miscellaneous

Package Contents
  • VGA Video Extender over CAT5 (ST121 Series)
  • 1 x Mounting Bracket for Receiver (w/ screws)
  • 2 x Sets Rubber Feet
  • 2 x Power Adapter
  • 1 x Instruction Manual
Additional Information
  • 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
Green Compliant Yes
Green Compliance Certificate / Authority EU RoHS
Country of Origin Taiwan
TAA Compliant Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS) 2Waste Electrical and Electronic Equipment Directive (WEEE)Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
End of Life Manual Availability Yes
EU RoHS Declaration URL https://media.startech.com/cms/pdfs/st121utp_rohs.pdf
REACH Declaration URL https://media.startech.com/cms/pdfs/st121utp_rohs.pdf
REACH free of SVHC Yes
WEEE Statement https://media.startech.com/cms/pdfs/st121utp_weee.pdf

Warranty

Limited Warranty 2 Year

Ratings and reviews

Do you own the StarTech.com VGA Video Extender over Cat5 (ST121 Series)?

Be the first to write a review.

Displaying 1-10 of 70

Accessories

Similar products you might also like

Video Consoles & Extenders

Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.