Used Brocade M4700 Switch - (formally  Sphereon 4700)

Part # ES-4700

Product Description:

The Brocade M4700 Fabric Switch scales from 16 to 32 ports and designed for mid-sized or enterprise department SAN requirements. It has a FICON Control Unit Port (CUP) which enables seamless integration into mainframe environments. The M4700 has the highest port density in 1U form factor, 4 Gb/sec technology, easy wizard-based installation and configuration, and fabric services and ISL capability on every port. It is primarily built for
SAN management , business continuance, disaster recovery, backup and restore, and DAS to SAN migration.