This leads almost invariably to disappointment when their USB external hard drive does not transfer data at 50 MB/sec or their SATA internal drive at 300 MB/sec. Many hard drive users mistake the "burst transfer rate" in the table above for what they can expect to see in real-world performance. The Thunderbolt interface is faster than SATA 3.0, so the SATA 3.0 drive and interface are the "bottleneck".īurst transfer rate vs.
#SEAGATE DISK TOOLS SLOW LONG SERIAL#
It may be that the destination disk and the interface can move and write data faster than the source disk can send it.Įxample: Backing up the data contained on a Serial ATA 3.0 drive to an external drive equipped with a Thunderbolt interface. The Serial ATA drive and interface are faster than USB 2.0, so the USB 2.0 drive and interface are the "bottleneck".
It may be that the source disk is newer and can push data faster than the destination disk can write it.Įxample: Backing up the data contained on a Serial ATA 6.0 drive to an external drive equipped with a USB 2.0 interface.