[GSD-805] What is the difference between the FSD-805 and GSD-805?

GSD-805 is an eight port Gigabit Ethernet Switch, all its RJ-45 port support triple speed, i.e. 10Mbps, 100Mbps or 1000Mbps.
And FSD-805 is an eight port Fast Ethernet Switch where only runs at 10Mbps, 100Mbps each port.

However, both switches are all with built-in universal internal power, both of them is a palm sized Ethernet Switch.