Sony PCV-R553DS - Manual (Page 69)

System Board 55
PCI Slot Connectors
There are a total of four PCI slot connectors (slot #1 to #4). One PCI slot
connector (#4) is available. The other three PCI slots are occupied by the
fax/modem card (#1), i.LINK
®
card (#2), and the Ethernet card (#3). The
PCI slots support 32-bit 5V and Universal (3.3/5V) PCI add-in cards.
OM04599B.VSD
Slot 3 (PCI)
Slot 4 (PCI)
Slot 2 (PCI)
Slot 1 (PCI)
B1 B62 B49 B52
A1 A62 A49 A52
PCI slot connector