USB 3.1 Gen 1 thiab USB 3.1 Gen 2 tsuas yog sib txawv ntawm kev ceev. USB 3.1 Gen 1 txhawb qhov siab tshaj plaws ntawm 5Gbit / sec, thiab USB 3.1 Gen 2 txhawb qhov siab tshaj plaws ntawm 10Gbit / sec. USB-IF npaj siab yuav siv cov npe sib txawv kom xa mus rau USB 3.1 Gen 1 thiab USB 3.1 Gen 2, uas tsuas yog pab tau rau hauv kev lag luam. Lawv vam tias yuav lub npe USB 3.1 Gen 1 thiab Gen 2 li" SuperSpeed USB" thiab"SuperSpeed USB+" feem, tab sis qhov no yeej tsis tau nrov hauv kev lag luam. Feem ntau, OEMs yuav ntxiv 5Gbps lossis 10Gbps nrawm rau lawv cov ntawv qhia tshwj xeeb kom paub qhov txawv ntawm ob tus qauv USB. Lwm tog hauv kev lag luam tsuas yog xa mus rau lawv li" USB 3.1 Gen 1" los yog" USB 3.1 Gen 2"
