Cisco MDS 9148S 16G Multilayer Fabric Switch at a glance:
Dimensions: 43.70 mm (1.72 in.) H x 435.90 mm (17.16 in.) W x 415.00 mm (16.34 in.) D, 1RU; all units rack-mountable in standard 19-inch Electronic Industries Alliance [EIA] rack.
Optional features: MDS 9100 Enterprise Package (FC 7210), MDS 9100 DCNM Advanced Edition (FC 7211) and MDS 9148S 12-port On-Demand activation (FC 7212).