haʊˈɛvɚ, æz jˌuːˌɛsbˈiː dɪvˈaɪsᵻz tˈɪpɪkli ɐtʃˈiːv lˈoʊɚ dˈeɪɾə tɹˈænsfɜː ɹˈeɪts ðɐn ɪntˈɜːnəl hˈɑːɹd dɹˈaɪvz, bˈuːɾɪŋ fɹʌm ˈoʊldɚ kəmpjˈuːɾɚz ðæt lˈæk səpˈoːɹt fɔːɹ jˌuːˌɛsbˈiː tˈuː.zˈiəɹoʊ ɔːɹ nˈuːɚ kæn biː vˈɛɹi slˈoʊ.
However, as USB devices typically achieve lower data transfer rates than internal hard drives, booting from older computers that lack support for USB 2.0 or newer can be very slow.