The MS-06R-1A Zaku II High Mobility Type is a mobile suit first introduced in Mobile Suit Variation.
A total of fifty-six Zaku II High Mobility Types were constructed, with half of the existing Zaku II High Mobility Test Types upgraded to the R1-A model. The Zaku II High Mobility Type became a highly sought after unit by ace pilots such as the Black Tri-Stars, Eric Manthfield, Masaya Nakagawa, and Shin Matsunaga. But despite its incredible popularity and high performance, the suit was considered too difficult for rookie pilots to handle, and too expensive for mass production. One unit was piloted by Vincent Gleissner of Zeon's regiment the Marchosias and participated in the battle of Solomon. In U.C. 0083, Char Aznable, Kamuji, and Fabian Frischknecht use the Tri-Stars' R-1A Zakus to attack a Federation fleet.