Seagate GoFlex Mac Portable 1TB External Hard Drive STBA 1000100 FireWire 800

Great choice if you have a Mac with FireWire 800 port and want plug-and-play Time Machine support.

Lower speed vs. modern USB 3.0 / Thunderbolt external drives—if transferring large volumes of data, USB 2.0 may feel slow.

Because it’s 5,400 RPM, performance will be modest (not as fast as 7,200 RPM or SSDs).

Interface adapters (USB 3.0 / eSATA) can help speed up transfers, if you have them and the drive supports them via GoFlex adapter system.