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// PCB Board Connectors

PCIe x1 Slot 36-Pin

PCIe x1 is the smallest PCIe slot with one lane providing 500 MB/s (PCIe 2.0), 985 MB/s (PCIe 3.0), or 1969 MB/s (PCIe 4.0). Used for network cards, sound cards, USB controllers, and other low-bandwidth expansion.

// Specifications
Standard
PCI Express specification
Pin Count
36 (18 per side)
Lanes
1 PCIe lane
Bandwidth
500 MB/s PCIe 2.0 per direction
Use Case
Network cards, sound cards, USB controllers
Size
Shortest PCIe slot
// Pin Reference Table
Pin Name Function Type
1 PRSNT1# Presence detect I/O
2 12V 12V supply PWR
3 12V 12V supply PWR
4 GND Ground GND
7 CLKREQ# Clock request I/O
11 PERST# PCIe reset active low I/O
17 PETTXP TX lane 0 positive BUS
18 PETTXN TX lane 0 negative BUS
32 PETRXP RX lane 0 positive BUS
33 PETRXN RX lane 0 negative BUS
36 PRSNT2# Presence detect I/O