In addition to a more bulky and complete frame, the Hi-v sports an exclusively white and violet color scheme to distinguish it from the white and black paint job on the v Gundam. The Hi-v also features more efficient thrusters across its body along with a more powerful Minovsky reactor core, boosting its overall performance.
The most prolific difference, however, is its distinct back boosters and revised fin funnel system. The fairly standard backpack design of the ν Gundam is replaced with a much more unique dual "long booster" system, with another long booster situated between them and two propellant tanks angled below the dual long boosters.
These boosters were capable of great accelerations, and the propellant tanks extended the duration of time the boosters could remain active. The long boosters also served as the storage area for the unit's fin funnels. Also, unlike the ν Gundam, the Hi-v Gundam could recharge the fin funnel's power supply, extending their performance time and range to much higher levels than those of previous remote weapons.
Apart from the obvious visual differences, the Hi-ν also expands on the ν Gundam's rather limited armaments, with the addition of a powerful machine gun in its right forearm as well as the inclusion of an extra beam saber, bringing the number of beam sabers up to three. In addition to its powerful beam rifle, the unit can also be armed with a ν Hyper Bazooka - a refined, upgraded version of the ν's Hyper Bazooka - and a Hyper Mega Bazooka Launcher, an improved model of the weapon used by the MSN-00100 Hyaku Shiki during the Gryps Conflict.
Thanks to its psycoframe, a vast improvement over the psycommu system prevalent among mobile suits designed to by used by Newtype pilots, Amuro Ray had much greater control over the mobile suit, piloting it almost as if it were an extension of his own body and pushing its performance to the absolute limit.
With the capabilities, parameters and attack power of the already-powerful ν Gundam greatly enhanced, the RX-93-ν2 represented the ultimate evolution of functionality and performance in mobile suit combat at the time.
RX-93-ν2 Hi-nu Gundam Papercraft free download