Will this work on an imac? Will it take the VGA type output from the imac and convert it into 640 by 480 composite video?

We used this to convert a VGA Signal from a PC and scale it down to SD video level and then dumped that into a SD Channel Modulator and it work ed fine. Any time we convert Apple signals it can be hit or miss. You have to buy and try. Good luck

can this be used with an older computer?

Sure; any computer with the standard 15-pin (VGA) socket will work. I need to be honest, though........I purchased 2 of these and both exhibited the same problem--a slight "ghosting" problem, with images to the right of the main one. This is particularly noticeable with sharply-defined video such as lettering. I purchased a Sewell SW-22050 converter, however, and it doesn't have this problem

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StarTech.com VGA2VID High Resolution VGA to Composite (RCA) or S-Video Converter - PC to TV Video Adapter - 1600x1200 RGB to TV

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Connect a PC with VGA output to a composite or S-Video TV
VGA to HDMI Adapter
VGA to HDMI Video Converter
VGA to HDTV
Supports Resolutions up to 1600x1200
Supports NTSC and PAL compatible displays

Overview

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This High Resolution VGA to Composite or SVideo Converter is a simple hardware solution that allows you to convert a VGAPC video signal into a Composite or SVideo signal for use with a CRT or flat panel display.

Model
Brand	StarTech.com
Model	VGA2VID

Details
Type	VGA to Composite
Color	Black
Cable Length	No
Specifications	Maximum Analog Resolutions: 1152 x 864 Operating Temperature: 0-70 Power Adapter - DC Voltage: 5 Center Tip Polarity: Positive Input Resolutions: 640x480 to 1600x1200

Features
Features	High resolution inputs from your PC up to 1600x1200 Provides output in both composite and S-Video formats Supports NTSC and PAL compatible displays Image underscan and overscan selectable switch

Dimensions & Weight
Weight	0.8

Additional Information
First Listed on Newegg	January 19, 2026

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StarTech.com VGA2VID High Resolution VGA to Composite (RCA) or S-Video Converter - PC to TV Video Adapter - 1600x1200 RGB to TV

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Item#: 9SIBSWCKS01515

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StarTech.com VGA2VID High Resolution VGA to Composite (RCA) or S-Video Converter - PC to TV Video Adapter - 1600x1200 RGB to TV

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Customer Reviews of the STARTECH VGA2VID

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