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Cisco SG250-50P-K9-NA-RF 50-Port Gigabit PoE Smart Switch - Layer 2 Managed - Rack-Mountable - Refurbished
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Product Features
Technical Overview
This switch operates at Gigabit Ethernet speeds with 1000Base-T technology across all 50 RJ-45 ports, each capable of delivering Power over Ethernet to connected devices. The built-in power supply ensures stable voltage delivery to PoE endpoints while maintaining a power consumption rating of 481.90 watts under full load.
The switching architecture supports twisted pair cabling for distances up to 100 meters, providing flexible deployment options throughout office environments. While redundant power supply support is not included, the single power supply design maintains reliable operation for typical business network requirements.
Relevant factors for this section include Total Number of Network Ports, Network (RJ-45), Uplink Port, Media Type Supported. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The SG250-50P combines high port density with smart management features in a compact 1U form factor. The integrated PoE capability eliminates the need for separate power injectors when connecting wireless access points, IP phones, or security cameras, simplifying network infrastructure and reducing installation costs.
High-Density Connectivity
With 50 Gigabit Ethernet ports, this switch supports extensive device connectivity for growing networks while maintaining full wire-speed performance across all ports.
- 50 RJ-45 ports
- Gigabit speed on every port
- Uplink port for network expansion
Smart Management Features
Layer 2 management capabilities provide network administrators with control over traffic prioritization, VLAN configuration, and network monitoring through a web-based interface.
- IGMP snooping for multicast optimization
- Port mirroring for traffic analysis
- Spanning tree for network redundancy
Deployment / Use Cases
This switch is particularly well-suited for office environments requiring centralized network connectivity with PoE support. The 50-port configuration makes it ideal for connecting workstations, printers, wireless access points, and VoIP phones in medium-sized business settings.
Educational institutions can deploy these switches in computer labs or classroom environments where multiple devices require both network connectivity and power through a single cable. The rack-mountable design ensures clean installation in network closets or data centers, with dimensions of 1.70" height, 17.30" width, and 13.80" depth fitting standard 19-inch rack enclosures.
Office Network Core
Serve as the central switching point for departmental networks, providing connectivity to desktops, conference room equipment, and shared peripherals with PoE support for wireless access points and IP phones.
Education & Lab Environments
Support computer lab deployments where multiple student workstations require simultaneous network access, with PoE capability for connected devices like thin clients or digital signage displays.
Physical Profile
The switch features a compact 1U rack-mountable form factor with dimensions of 1.70" (43.18 mm) height, 17.30" (439.42 mm) width, and 13.80" (350.52 mm) depth. Weighing approximately 10.63 lb (4821.69 g), it installs easily in standard 19-inch rack enclosures using included mounting hardware. The front-panel design provides clear port status indicators and management access, while rear-panel connections accommodate the integrated power supply.
- Width
- 17.30" (439.42 mm)
- Depth
- 13.80" (350.52 mm)
- Height
- 1.70" (43.18 mm)
- Weight
- 10.63 lb (4821.69 g)
Highlights
- 50 Gigabit Ethernet ports with PoE support
- Layer 2 managed switching with advanced features
- Rack-mountable 1U form factor for professional installation
- 1000Base-T technology for high-speed data transfer
- Built-in power supply with 481.90W power consumption
- Supports twisted pair cabling up to 100 meters
- Uplink port for network expansion
- Lifetime limited warranty coverage
- Refurbished condition with full functionality
- Web-based management interface for easy configuration
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | SG250-50P-K9-NA-RF |
| Brand Name | Cisco |
| Product Series | 250 |
| Product Model | SG250-50P |
| Product Name | SG250-50P 50-Port Gigabit PoE Smart Switch |
| Product Condition | Refurbished |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 50 |
| Network (RJ-45) | Yes |
| Uplink Port | Yes |
| Port/Expansion Slot Details | 50 x Gigabit Ethernet PoE |
| Media & Performance | |
| Media Type Supported | Twisted Pair |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 1000Base-T |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| PoE (RJ-45) Port | Yes |
| Power Source | Power Supply |
| Redundant Power Supply Supported | No |
| Power Consumption | 481.90 W |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Height | 1.70" (43.18 mm) |
| Width | 17.30" (439.42 mm) |
| Depth | 13.80" (350.52 mm) |
| Weight (Approximate) | 10.63 lb (4821.69 g) |
| Miscellaneous | |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
How many PoE ports does this switch have?
All 50 Gigabit Ethernet ports on the Cisco SG250-50P support Power over Ethernet. This means you can connect and power compatible devices like wireless access points, IP phones, and security cameras directly through the network cables without needing separate power adapters or injectors.
What management features does this Layer 2 switch include?
As a Layer 2 managed switch, the SG250-50P provides web-based management with features including VLAN support, Quality of Service (QoS) for traffic prioritization, IGMP snooping for efficient multicast traffic handling, port mirroring for network monitoring, and spanning tree protocol for network redundancy. These features give network administrators control over traffic flow and network optimization.
What are the physical dimensions for rack mounting?
The switch measures 1.70 inches (43.18 mm) in height, 17.30 inches (439.42 mm) in width, and 13.80 inches (350.52 mm) in depth. This 1U form factor fits standard 19-inch rack enclosures, making it suitable for professional network closet or data center installations where space optimization is important.
Does this switch support redundant power supplies?
No, the Cisco SG250-50P does not support redundant power supplies. It operates with a single built-in power supply rated at 481.90 watts. For environments requiring power redundancy, consider implementing uninterruptible power supply (UPS) protection at the rack level to maintain switch operation during power interruptions.
What type of warranty comes with this refurbished switch?
This refurbished Cisco SG250-50P comes with a lifetime limited warranty. Refurbished products undergo comprehensive testing and reconditioning to ensure they meet original performance specifications. The warranty provides coverage for defects in materials and workmanship for the lifetime of the product.
What cable types are supported for network connections?
The switch supports standard twisted pair Ethernet cables (Category 5e, 6, or higher) using 1000Base-T technology. It's compatible with both shielded and unshielded twisted pair cabling for distances up to 100 meters per connection. All 50 ports use standard RJ-45 connectors for easy integration with existing network infrastructure.
| Qty | Price | Available |
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