Apple 6400 ADB port Printer port ≤ Power socket, Optional, TV tuner card, Subwoofer balance

® Standby power button	TV tuner card (optional)
™Monitor video port	Ï Subwoofer balance control
V Apple Desktop Bus	Video input card (optional)
(ADB) port
[ Printer port	≤ Power socket
WExternal modem port	Monitor power socket
	PCI card access covers (2)

gSCSI port

≈ Sound input port	Internal modem card
	(optional)
- Sound output port	F Security lock port

TV tuner card		Connects your Macintosh to an external TV antenna or cable
(optional)		TV service. (Note: The TV tuner card on your computer, if you
		have a card installed, may look different.)
Subwoofer balance	Ï Adjusts subwoofer balance in relation to external speakers,
control		if external speakers (including a monitor with built-in speakers)
		are attached. (If external speakers are not attached, the
		balance control does not affect the subwoofer volume.)
Video input card		Connects your Macintosh to a video camera, VCR, or other
(optional)		video input equipment.
PCI card access covers (2)		Cover ports for optional 6.88-inch PCI (peripheral component
		interconnect) slot expansion cards (such as a video-editing
		card).
Internal modem		Covers port for optional communication card (such as an
card (optional)		internal modem card or Ethernet card). You may have a
		modem card installed in this slot already.
Security lock port	F	Enables you to attach a security lock to your Macintosh. See
		your computer products retailer for security lock devices that
		work with your computer.

Connecting Equipment and Expanding Your Computer 39