kˌʌstəmˈɛɹᵻli ðiːz ˈɑːkjʊpˌaɪ wˈʌn ɔːɹ mˈoːɹ dɹˈaɪv bˈeɪz ɔnðə fɹˈʌnt ʌvðə kəmpjˈuːɾɚ kˈeɪs, ænd ˈiːðɚɹ ˈɪntɚfˌeɪs dᵻɹˈɛktli wɪððə sˈɪstəm hˈɑːɹdwɛɹ ɔːɹ kənˈɛkt tʊ ɐ sˈɔftwɛɹ dˈeɪɾəkəlˈɛkʃən sˈɪstəm vˈaɪə jˌuːˌɛsbˈiː.
Customarily these occupy one or more drive bays on the front of the computer case, and either interface directly with the system hardware or connect to a software data-collection system via USB.