Dell 8 Update Manual page 17

Mellanox M2401G Infiniband Switch I/O Module
The Mellanox M2401G Infiniband switch I/O module includes 24 4x DDR
Infiniband ports. Eight ports are external uplink ports, while 16 internal ports
provide connectivity to the blades in the enclosure.
Figure 1-2. Mellanox M2401G Infiniband Switch Module
1 Infiniband ports (8)
3 port activity indicators (8)
5 status/identification indicator
2 port link status indicators (8)
4 module power indicator
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