Windows 8.1 - 64bitsWindows 8.1 recognize this device as "Conexant Polaris Video Capture" but does not make this device work.
It works with the the driver on kworld website will recognize the device on Windows 8.1:
Driver: (UB405-A、UB406-A、UB490-A、UB423-D、UB424-D) - V6.0113.0721.2114(WHQL)
Windows TV Tuner Software:
The program TiVme that is also available for download on the kworld homepage works on Windows 8.1 (Audio and Video). Sometime it crash but works good enought.
Windows Media Center
The evil Windows Media Center on Windows 8.1 also works with this device.