Hardware and Software Limitations in Mac OS X Server
Mac OS X Server does not support certain hardware and software features:
mFireWire
mUSB devices other than the USB keyboard and mouse
m
mPPP (Point-to-Point Protocol) or Internet connection via modem
mSpeech recognition ( You can use an application called Sound.app, located in your /System/Demos folder, to record sounds in Mac OS X Server.)
mMost
mStandard audio discs and photo CDs