USB/FireWire 7-Port Hub for Mac® mini F5U507uk
Connect up to 4-high-, or full-speed USB devices and 3 FireWire devices to your Mac Mini

FireWire 6-Port hub F5U526ukAPL-S
Firewire 6 Port Hub connect your audio, video and multiplayer gaming devices.

Firewire 800 (1394b) 2-Port Hub F5U624ukAPL
Connect 2 FireWire® devices for speeds up to 800Mbps!