A second generation of Digibox exists, marketed as Sky+. These PVR units have three versions: the 40 GB PVR1, the 40 GB PVR2, and the PVR3 which is fitted with a 160 GB HDD with 80GB available for user recordings, and the remaining 80 GB reserved for use by Sky Anytime. All have dual LNB inputs and an optical digital audio output, as well as all other features of the Sky box. These units are manufactured by Amstrad, Pace and Thomson only, and use a different remote control. USB ports are fitted to the PVR3. When Sky+ was launched, there was an additional £10 monthly charge to access the Sky+ functionality if two or more premium packages were not subscribed to. Sky have now removed this charge, effective 1 July 2007. Without a Sky+ Subscription, the Sky+ box reverts to the functionality of a normal Digibox, albeit without Autoview modes.