The Viper Mark VII is the Colonial Military's latest iteration of the venerable Viper space superiority fighter.
Having been brought into service some time after the First Cylon War and before the Fall of the Colonies, the Viper Mark VII is the most advanced space superiority fighter shown in the Battlestar Galactica RDM universe. It is shown as being in widespread use at the time of the Fall.
It is heavily reliant on advanced computer systems - this proves to be its downfall, as most fighters of its class are shut down and destroyed by Cylon infiltration thanks to the CNP backdoor. The only remaining fighters are retrofitted to older software and presumably receive modifications to their systems to allow them to become more resistant to Cylon infiltration.