Dell PowerEdge M420 Technical Manual page 24

The M420 provides one PCIe 3.0 mezzanine connector for add-in cards. The M420 is designed to
be PCIe 3.0-compliant to take full advantage of the processor capabilities. Installation of a
mezzanine card requires an M1000e I/O Module (IOM) of the same fabric technology to be installed
in the corresponding fabric slot of the mezzanine card to support data flow through the fabric/slot.
Table 13 lists the supported mezzanine cards for the M420.
Type
1Gb/10GB Adapters
InfiniBand
Fibre Channel
For the latest information on supported mezzanine cards for the M420, visit Dell.com.
The full-height, single wide M420 sleeve holds up to four M420 blades in four slots: a, b, c, and d.
A maximum of eight sleeves fit into a single M1000e chassis. Understanding how the blades connect
demonstrates the impact of switch choice on the number of available ports, as shown in Figure 6.
Blades connect to Fabrics B and C differently depending on the slot within the M420 sleeve.
PowerEdge M420 Technical Guide
24
Adapter
Broadcom Serdes 4P 1Gb
Intel I350 Serdes 4P 1Gb
Broadcom 10Gb
Intel X520-x/k 2P 10Gb
Qlogic 2P 10Gb
Brocade BR1741M-k 2P 10Gb
Mellanox FDR10 CX-3 40Gb
QLogic QME2572 2P 8Gb
Emulex LPe1205-M 2P 8Gb
QLogic QME2662 2P 16Gb
Emulex LPm16002B-D 2P 16Gb