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About USB and FireWire
Actual connection performance depends on many factors including: CPU, file system
overhead, number of attached devices and more. Given these and other factors, in day-to-
day use you can expect maximum, sustained transfer rates to be less than the theoretical
rates maximum rates possible with the connection.
USB 3.0 is backwards compatible with USB 2.0 and 1.1. FireWire 800 is backwards
compatible with FireWire 400 with a separate adapter (not included). This means you can
generally connect newer devices to older devices. However, interface transfer rates are
limited by the interface with the lower speed.
NOTE
: The cable supplied with your system has been optimized for performance. Longer
cables may not work or only work intermittently.
Some computers or hubs may be underpowered. A USB 2.0 Y cable is included
with the ioSafe Rugged Portable if you have trouble with a low powered USB
port. Alternatively, you can try a different USB port or try a powered hub.