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PCMCIA cards (Type II) or one 10.5 mm PCMCIA card (Type III). You can install any industry standard PCMCIA card such as a SCSI adapter, Ethernet adapter or flash memory card.
Microphone jack A standard 3.5 mm mini for audio input. When you connect an external microphone, the internal microphone is automatically disabled.
Headphone jack A standard 3.5 mm mini or other device for audio output. When you connect headphones, the internal speaker is automatically disabled.
Volume control Use this dial to adjust the volume of the system speaker.
Security lock A security cable attaches to this slot. The optional security cable anchors your computer to a desk or other large object to deter theft.