Home > Storage > PowerStore > Storage Admin > Dell PowerStore: Technical Primer > 100 GbE optical (2-port)
Starting with PowerStoreOS 3.0, the 100 GbE optical I/O module supports QSFP28 transceivers running at 100 GbE speeds. The 100 GbE I/O module must be populated into I/O module slot 0 on each node of the PowerStore appliance. The optical I/O module ports also support 100 GbE active and passive direct attach copper cables with QSFP28 transceivers. Each QSFP28 transceiver is a quad-lane small form-factor pluggable that multiplexes the data stream across all four lanes. You can mix different QSFPs or copper cables on the same I/O module, and they are hot-swappable. This I/O module supports file, NVMe/TCP, iSCSI traffic, replication, and import interfaces. For more information, see the document Dell PowerStore: Introduction to the Platform.