Sony PCG-R505ELP - Manual (Page 17)

Using a PC Card
Your computer includes one PC Card slot. A PC Card enables you to connect portable external devices, such as another
hard disk drive, to your computer. It also lets you connect to a network using a PC Network Interface Card (NIC).
The PC Card slot accommodates one Type II PC Card. This slot is compatible with CardBus. You do not need to turn off your
computer before inserting or removing a PC Card.
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