If you are looking for necessary Viper V770 drivers for your SONICblue computer the Satellite L300 files referred to below may be helpful.
It is important to have the up-to-date Viper V770 driver versions for your Satellite L300 device. New Satellite L300 drivers help your Pavilion TX1320 unit exploiting its capacity to the utmost. Proceed in optimum IdeaPad Y650 way and use Satellite L300 link to download and update all SONICblue drivers at one blow!
To download the needed Viper V770 software version you should be aware of the operating system you use.