The Cisco WAE-611 represents the next step up in both performance and reliability from the Cisco WAE-511. Based on the Intel Pentium 4 processor, the Cisco WAE-611 appliance architecture has more memory than the Cisco WAE-511. The Cisco WAE-611 uses two front-loadable Small Computer System Interface (SCSI) hard disks for greater performance and reliability. For storage expandability and higher caching performance, a Cisco Storage Array 7340 (seven-drive default configuration only) can be connected to the Cisco WAE-611 external SCSI connector. Optionally the Cisco WAE-611 can be configured with either a Fiber Channel HBA for interfacing with a SAN or an MPEG video decoder for baseband video capability.