It looks like it is one, but dmidecode doesn’t show it.
# sudo dmidecode --type slot
# dmidecode 3.4
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.
Handle 0x001C, DMI type 9, 17 bytes
System Slot Information
Designation: J6B2
Type: x16 PCI Express
Current Usage: Available
Length: Long
ID: 1
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:10.0
Handle 0x001D, DMI type 9, 17 bytes
System Slot Information
Designation: J6B1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 2
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:1c.4
Handle 0x001E, DMI type 9, 17 bytes
System Slot Information
Designation: J6D1
Type: x4 PCI Express
Current Usage: Available
Length: Long
ID: 3
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:1d.0
Handle 0x001F, DMI type 9, 17 bytes
System Slot Information
Designation: J7B1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 4
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:1c.5
Wrong DMI structures length: 3135 bytes announced, structures occupy 3136 bytes.
Oh thanks, I didn’t know that. I thought it was an all purpose PCIe connector. Is there any way to find out whether it supports SSD storage? Is that way the dmidecode from my other comment (and basically saying that it doesn’t support storage?)