I bought this one, it works very well on S-Video take a look at the quality of my latest broadcasts. https://www.amazon.com/ION-Analog-Digital-Converter-Composite/dp/B002MT7JFQ
I would recommend the I/O Data GV-USB2 for composite, s-video. It's one of, if not the best cheap capture card you can find. https://amzn.to/2Mm8tjk
yes the gvusb2 is a great entry level capture device you can get for the money and it's super simple to use. there is a video on youtube showing how to install the drivers. it should come with a disc if it doesn't there's drivers you can download for it but it requires you to enter in the serial number to verify the purchase. but the drivers are super simple to DL even tho it's all in japanese. I'll link the video here I used to install my drivers. but if it comes in a box it should have the disc with it. but just in case this video will help for the drivers.
driver install video
downloadable driver if no disc is with it. download link is at the top of the page. https://iotku.pw/gvusb2-guide/#s-download-drivers
