PCI Express 4x

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PCI Express 1x - 64 pin Female Connector PCI Express 1x - 64 pin Female Connector

PCI Express was introduced to overcome the limitations of the original PCI bus. Developed and released by Intel over a decade ago, the original PCI bus operated at 33MHz and 32 bits with a peak theoretical bandwidth of 132MB per second. It used a shared bus topology – bus bandwidth is shared among multiple devices - to enable communication among the different devices on the bus.

Pin Side B Connector Side A Connector
# Name Description
1 +12v +12 volt power
2 +12v +12 volt power
3 RSVD Reserved
4 GND Ground
5 SMCLK SMBus clock
6 SMDAT SMBus data
7 GND Ground
8 +3.3v +3.3 volt power
9 JTAG1 +TRST#
10 3.3Vaux 3.3v volt power
11 WAKE# Link Reactivation
12 RSVD Reserved
13 GND Ground
14 HSOp(0) Transmitter Lane 0, Differential pair
15 HSOn(0) GND
16 GND Ground
17 PRSNT#2 Hotplug detect
18 GND Ground
19 HSOp(1) Transmitter Lane 1, Differential pair
20 HSOn(1) GND
21 GND Ground
22 GND Ground
23 HSOp(2) Transmitter Lane 2, Differential pair
24 HSOn(2) GND
25 GND Ground
26 GND Ground
27 HSOp(3) Transmitter Lane 3, Differential pair
28 HSOn(0) GND
29 GND Ground
30 RSVD Reserved
31 PRSNT#2 Hot plug detect
32 GND Ground

References

Category:Buses Connectors

 

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