The 1TB GoFlex for Mac Ultra-Portable Hard Drive with Thunderbolt Adapter Kit from B&H is a combination of the 1TB GoFlex for Mac Ultra-Portable Hard Drive and GoFlex Thunderbolt Adapter, both from Seagate.
In a durable soft-touch silver finish that matches your Mac desktop or MacBook, the 1TB GoFlex is a stellar external solution for storing, transporting, and backing up your files. Formatted in HFS+ this drive works right out of the box with your Mac computer and is fully compatible with Time Machine. It features a large storage capacity of 1TB and includes adapters that make it Plug-and-Play ready with your computer's FireWire 800 or USB 2.0 interface. While not included, eSATA and USB 3.0 adapters are also available if you ever need to upgrade your drive's interface. Beyond working with your Mac, you can also download a free HFS+ driver for PCs and use this external hard drive with your Windows computer.
Bringing the hard drive's capabilities to the next level, the GoFlex Thunderbolt Adapter provides extremely fast transfers of large files. Connect it to your drive and a Thunderbolt cable, sold separately, to provide interface speeds up to 20 times faster than USB 2.0, while also working with any additional portable GoFlex drives you have or may get in the future.