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    Anyway, please select branded pendrives, USB HDDs and SD cards.
    We advise you press stop recording to save one file about per 1.5 or 2 hours to pretect your recording files even you select the firmware or menu of recording no-spliter.

    1, USB 2.0 pendrive and USB 2.0 HDD.
    - For FAT32 format, it only can record less than 2G per file.

    - Please re-format firstly, and safety remove from your computer, expecially NTFS format devices.

    - For USB HDD, we suggest you don't patition it.

    - It doesn't support exFAT format.

     

    2, USB 3.0 pendrive and USB 3.0 HDD.
    - Except above informations, we found there are many bad quality and low speed devices in market, and we suggest Kinston's pendrives, and Seagate and Maxtor's HDDs.

     

    3, SD Card.
    - Please buy branded SD cards with 10 class or above.