Dell Networking N1548 48x 1GbE + 4x 10GbE SFP+ fixed ports Stacking IO to PSU airflow AC

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Dell Networking N1548, 48x 1GbE + 4x 10GbE SFP+ fixed ports, Stacking, IO to PSU airflow, AC/N1548,N1548P Extended Lifetime Warranty Warranty - Minimum Warranty Dell Networking N1548 48 RJ45 10/100/1000Mb auto-sensing ports Four integrated 10GbE SFP+ ports One integrated power supply (100W AC) The following applies to all N1500 series models: Standard Traffic-Port Attributes Integrated 10GbE SFP+ dedicated ports (beyond standard ports): 4 Integrated GbE SFP combo ports: Not Available Integrated GbE 10/100/1000BASE-T RJ45 combo ports: Not Available Integrated 40GbE QSFP+ dedicated ports: Not Available Modular Traffic-Port Attributes Hot swappable expansion module bay: Not Available Module support for 10GbE: Not Available Module support for 40GbE: Not Available Support for 40GbE to 4x 10GbE breakout: Not Available Traffic-Port Features Auto-negotiation for speed and flow control: Standard  Auto MDI/MDIX: Standard Port mirroring: Standard Flow-based port mirroring: Standard Broadcast storm control: Standard Energy Efficient Ethernet per port settings: Standard Port Profile support including Admin profiles: Standard Management- & Configuration-Port Attributes 1 RJ45 console/management port with RS232 signaling: Standard 1 Out-of-Band (OOB) Management Port (10/100/1000BASE-T): Not Available 1 USB (Type A) port for configuration: Standard Stacking Attributes Integrated rear mini-SAS stacking ports: Not Available User port stacking: Y Maximum stacking distance (meters): 100 Maximum stacking speed (full-duplex): 40Gbps Switch Attributes Line-rate Layer 2 switching: Standard Line-rate Layer 3 routing: Standard CPU Memory: 1GB Flash Memory: 256MB Packet Buffer Memory: 1.5MB Dual firmware images on-board: Standard Temperature sensors for environmental monitoring: Standard Cable diagnostics: Standard Optical transceiver (SFP/SFP+) diagnostics: Standard Switch auditing support: Standard UDLD: Standard Chassis Rack Height: 1U Rack-mounting kit: Y ReadyRails™ rack mounting system, no tools required: Not Available Power & Cooling Hardware Internal hot swappable power supply bays: Not Available Hot swappable power supplies (included): Not Available Integrated power supply (not removable): Standard External power supply: Option Available Power supply redundancy: Option Available Removable fans): Not Available Redundant fans: Standard Variable speed fans: Standard Air flow: IO to PSU (Normal) Environmental Operating Conditions Operating Temperature in Celsius: 0° to 45° C Operating Temperature in Fahrenheit: 32° to 113° F Storage Temperature in Celsius: -40° to 65° C Storage Temperature in Fahrenheit: -40° to 149° F Operating Relative Humidity: 95% Storage Relative Humidity: 85% Power Supply Efficiency: 80% or better in all operating modes Optional Features Modules (optional) 2-port 10 Gigabit BASE-T RJ45 hot swappable uplink module: Not Available 2-port 10 Gigabit SFP+ hot swappable uplink module: Not Available 4-port 10 Gigabit BASE-T RJ45 hot swappable module: N