Rhino/Prime

Release Date: March 5th, 2014

Rhino Prime is the primed variant of the Rhino Warframe featuring more powerful stats: possessing higher armor and sprint speed, as well as an additional polarity.

On February 9th, 2016, it was announced that Rhino Prime would enter the Prime Vault and be retired from the reward tables on February 16th, 2016. Any preexisting components or fully-built frames will remain as is.

Trivia

 * Rhino Prime was the first Prime Warframe to have an ability's effects modified compared to its unprimed counterpart. In this case, Iron Skin appears to cover more of his body, and has a much smoother texture, lacking the rock-like clusters seen on the unprimed Rhino's Iron Skin.
 * Up until, Rhino Prime's Iron Skin was also gold in color instead of the unprimed Rhino's grey color. It is now affected by Rhino Prime's chosen accent color.
 * Rhino Prime was the first prime Warframe with a non-static model, the second being Nova Prime, with what appears to be a continuously-moving golden wind-up key on his back.