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// PCB Board Connectors

PCI Slot 32-Bit 124-Pin

PCI (Peripheral Component Interconnect) 32-bit slot has 124 pins providing a 32-bit parallel bus at 33 or 66 MHz for a maximum bandwidth of 266 MB/s. Used for expansion cards from 1993 to 2010.

// Specifications
Standard
PCI 2.3 specification
Pin Count
124 (62 per side)
Bus Width
32-bit
Clock
33 MHz or 66 MHz
Bandwidth
133 MB/s or 266 MB/s
Status
Legacy replaced by PCIe
// Pin Reference Table
Pin Name Function Type
1 GND Ground GND
2 TRDY# Target ready active low I/O
3 STOP# Stop transaction I/O
11 AD0 Address data bus bit 0 I/O
12 AD1 Address data bus bit 1 I/O
48 VCC 5V or 3.3V supply PWR
62 CLK PCI clock 33 or 66 MHz BUS