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The Cisco® Catalyst® 4948 is a wire-speed, low-latency, Layer 2-4, 1-rack-unit (1 RU) fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948 Series offers exceptional performance and reliability for low density, multilayer aggregation of high performance servers and workstations. The Cisco Catalyst 4948 offers 48 ports of wire-speed 10/100/1000BASE-T with 4 alternative wired ports that can accommodate optional 1000BASE-X Small Form-Factor Pluggable (SFP ) optics. Exceptional reliability and serviceability are delivered with optional internal AC or DC 1 + 1 hot-swappable power supplies and a hot-swappable fan tray with redundant fans.
(All Cisco Catalyst 4900 Series Switches Brochures)
Catalyst 4500 and 4948 Series Switches Service Provider Networks At A Glance (PDF - 760 KB)
(All Cisco Catalyst 4900 Series Switches Data Sheets)
Cisco Catalyst 4948 Series Switches
(All Cisco Catalyst 4900 Series Switches Press Coverage)
Network World: Cisco Catalyst 4948-10GE Named Best Network Infrastructure Produc (PDF - 270 KB)
(All Cisco Catalyst 4900 Series Switches White Papers)