- Feature-on-Demand (FoD) / activation key
- 14 internal ports / 2 external 40 Gb uplinks
49Y4798 (Upgrade 1) can be applied on the base switch when you take full advantage of four-port adapter cards installed in each compute node. This upgrade enables 14 additional internal ports, for a total of 28 ports. The upgrade also enables two 40 Gb uplinks with QSFP+ connectors that can also be used for stacking. These QSFP+ ports can also be converted to four 10 Gb SFP+ DAC connections using the appropriate fan-out cable. This upgrade requires the base switch.