3. Technical Information
3.a. Connectors
Communication from the lanes occurs through a pair of connectors on each ExpressCard cable adapter, the PCMCIA defined
ExpressCard connector on the laptop side and the PCIe x1 connector defined by PCI-SIG on the cable side.
ExpressCard Connector
The ExpressCard connector is a 26 position ExpressCard connector as defined in the PCMCIA ExpressCard specification 2.1.
3.b. ExpressCard Connector (P1) Pin Assignments
Pin # Signal Name
Direction
1
GND
PWR
2
N/C
3
N/C
4
N/C
5
N/C
6
N/C
7
N/C
8
N/C
9
N/C
10
N/C
11
WAKE#
Output
12
+3.3VAUX
PWR
13
PERST#
Input
14
+3.3V
PWR
15
+3.3V
PWR
16
CLKREQ#
Output
17
GND
PWR
18
REFCLK-
Input
19
Input
20
GND
PWR
21
PER0-
Input/Output
22
PER0+
Input/Output
23
GND
PWR
24
PET0-
Input/Output
25
PET0+
Input/Output
26
GND
PWR
Pin 26
Pin 1
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