![]() ![]() To avoid data corruption, always flush the buffer before you turn off or disconnect the drive. ![]() ![]() Data corruption occurs if the drive is turned off or disconnected before buffered data is written to it. The advantage of USB 2.0 is that it is ubiquitous, so a USB 2.0 external hard drive can be connected to nearly any notebook or desktop system.Īlthough data corruption is possible with any external hard drive, it is particularly likely to occur with USB 2.0 external hard drives. Because standard hard drives can use 50 MB/s or more bandwidth, the USB 2.0 interface throttles throughput noticeably for the fastest external hard drives, making them "feel" somewhat slower than an internal drive. USB 2.0 nominally provides 60 MB/s bandwidth, but overhead typically reduces this to an effective 25 MB/s to 30 MB/s. USB 2.0 is by far the most common interface supported by external hard drives. ![]()
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