Sony PCV-LX920 - Manual (Page 135)

To Insert an Add-on Card
There are two PCI expansion slots in your computer. One slot contains the preinstalled modem card. The second slot is
open for installation of an add-on card that supports Windows
® XP and the PCI revision 2.1 specification.
Note:
Your VAIO Slimtop Computer cannot accommodate PCI add-on cards over 6.6 inches in length.
Caution:
Observe the proper safety precautions when you add cards to your Sony computer. See Upgrading the computer
system .
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