Urukurikirane 550 ni guhuza umutekano biranga igishushanyo-cyoroshye-gifata hamwe nibikorwa byikora byuzuye.Nibito, byinshi byoroshye kandi bitanga umuvuduko mwinshi kuruta ibishushanyo mbonera. I t ni ukuboko kumwe gukoreshwa guhuza umutekano bigenda mbere yo gutandukana, bikuraho ibyago byo gukubitwa ibiboko.Series 550 ni ihuriro ryumutekano rigaragaza igishushanyo-cyoroshye-gifata gifite imikorere yuzuye yikora.Nibito, byinshi byoroshye kandi bitanga umuvuduko mwinshi kuruta ibishushanyo mbonera.Nukuboko kumwe gukorera hamwe guhuza umutekano bigenda mbere yo gutandukana, bikuraho ingaruka zo gukubitwa hose.