One gigabyte (GB) = one billion bytes. One terabyte (TB) = one trillion bytes. The total accessible capacity may be less and actual capacity depends on the operating environment and formatting.
2-port SuperSpeed USB 3.0 PCI Express® Host Card
Upgrade to the newest SuperSpeed USB 3.0 standard with the Cavalry USB 3.0 Host Card. The 2 ports for your USB 3.0 devices allows you to transfer data at a rate of up to 10x that of USB 2.0.
The USB 3.0 ports are backwards compatible with older USB 2.0 devices so you can use both at the same time..