For more information about risers, see Riser board components.
PCIe4 slot description
Item Description Definition
1 PCI Express version
Each PCIe version corresponds to a specific data transfer rate
between the processor and peripheral devices. Generally, a
version update corresponds to an increase in transfer rate.
• PCIe 1.x
• PCIe 2.x
• PCIe 3.x
• PCIe 4.x
The PCIe technology is under constant development. For the
latest information, see the PCI-SIG website.
2
Physical connector link width
PCIe devices communicate through a logical connection called
an interconnect or link. At the physical level, a link is composed
of one or more lanes. The number of lanes is written with an "×"
prefix with ×16 being the largest size in common use.
• ×1
• ×2
• ×4
• ×8
• ×16
3
Negotiable link width These numbers correspond to the maximum link bandwidth
supported by the slot.
24 Component identification
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