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These devices often support 2.5" and 3.5" IDE/SATA drives and require specific software to enable the physical "Backup" button on the unit.
Many hardware tools branded as "OTB" are actually using standard USB-to-serial chips (FTDI FT232, CH340, CP2102, PL2303). Download the official driver from FTDI Chip or WCH (Nanjing Qinheng) instead. In many cases, the generic driver works perfectly. otb+driver+top+download+link+http+wwwmotbsidcom