Usb Video Grabber Vc-211a How Would I Capture Video On My Mac With This?

How would I capture video on my Mac with this? - usb video grabber vc-211a

I have something like this: http://www.alibaba.com/product-gs/211374091/EzCAP128_Mac_USB_Video_Grabber/showimage.html

This is a video / audio to USB / Audio Jack Converter.

How can I see / save the video you want to capture with my iMac with Final Cut Express on it?