The QSFP28 direct-attach cables are available to provide the
following types of connections:
Single-connection cables provide
a 100 Gb bidirectional copper or optical connection between unpopulated QSFP28
ports.
Passive copper
cable
Active optical
cable
Fan-out (or breakout) cables
provide multiple, bidirectional copper connections to a single QSFP28 port. This
has the effect of partitioning the port – for example, partitioning a 100 Gb
port into two QSFP28 50 Gb ports or four QSFP28 25Gb ports on a network adapter
or another switch.
QSFP28 Fan-out
(Breakout) Copper Cable
These cables are available in lengths from 1 meter to 20 meters and are
terminated in connectors that are inserted directly into the QSFP28 or SFP28 cages
in place of optical modules.
The following tables list the available 100 Gb
QSFP28 direct-attach cables.
