Apple G3, 3400C/200 manual Serial, Sound, Infrared

	Specifications	I/O Interfaces - 6
Serial		Serial port for printer, modem (including Geo Port support),
		LocalTalk network, or other serial devices (RS-422)
Sound		Sound output port for external audio amplifier/powered speakers,
		stereo mini-jack, 3-connector, standard 3.5-mm stereo
		miniplug; sound input port for stereo sound input (line level),
		stereo mini-jack, 3-connector, standard 3.5-mm stereo
		miniplug
		16-bit stereo sound in and out supports 44.1 kHz (“CD quality”
		sound), 22 kHz, and 11 kHz sample rates
		Four built-in speakers; two housed in the display and two at the
		top of the keyboard
Infrared		Built-in infrared that supports two types of transmission—230
		kilobit-per-second IRTalk and 1 megabit-per-second IrDA