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Cisco SG250-50-K9-NA-RF 50-Port Gigabit Smart Switch - Layer 2 Managed - Rack-Mountable - Refurbished
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Product Features
Technical Overview
The SG250-50 operates as a Layer 2 switch, supporting essential networking protocols such as IGMP snooping, port mirroring, and spanning tree for optimized traffic management and network stability. Its 50 ports deliver Gigabit Ethernet speeds via 1000Base-X technology, providing up to 10 times faster connectivity than standard Ethernet, which enhances server uplinks and reduces latency for data-intensive applications.
The switch uses twisted pair cabling, supporting cost-efficient Cat5e or Cat6 cables for high-speed data transfer up to 100 meters. It includes an uplink port for connecting to core switches or routers, facilitating scalable network expansion. Management capabilities allow for configuration of VLANs, QoS, and security settings through a web-based interface, giving administrators control over network performance and access.
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 Cisco SG250-50 combines high port density with smart management features, making it an ideal choice for businesses needing to scale their wired networks efficiently. Its 50 Gigabit ports provide ample connectivity for expanding office environments, while the Layer 2 functionality ensures robust traffic handling and network segmentation.
High Port Density
With 50 Gigabit Ethernet ports, this switch supports numerous devices simultaneously, reducing the need for additional switches and simplifying network topology.
- Accommodates workstations, servers, and peripherals
- Reduces clutter and hardware costs
Advanced Management
Layer 2 management includes features like IGMP snooping for multicast optimization and spanning tree for loop prevention, enhancing network reliability and performance.
- Web-based configuration interface
- Supports VLANs and QoS settings
Rack-Ready Design
The 1U rack-mountable form factor allows for secure installation in standard server racks, promoting organized cable management and professional deployment.
- Fits 19-inch racks
- Includes mounting hardware compatibility
Deployment / Use Cases
The SG250-50 is well-suited for small to medium-sized businesses, educational institutions, and retail environments that require reliable wired networking with growth potential. Its 50-port configuration makes it effective for connecting multiple devices in office floors, classrooms, or retail points of sale, ensuring consistent Gigabit speeds for daily operations.
In server room or data closet deployments, the switch's rack-mountable design and uplink port enable integration into existing network hierarchies, supporting aggregation of traffic from edge switches. The Layer 2 features facilitate segmentation for departments or security zones, while the manageable interface allows for remote troubleshooting and updates, reducing downtime and maintenance costs.
Physical Profile
The Cisco SG250-50 measures 1.70" in height, 17.30" in width, and 10.10" in depth, with a weight of approximately 6.48 lb. Its compact 1U rack-mountable form factor ensures it occupies minimal space in network cabinets, while the sturdy construction supports reliable operation in standard office environments. The design includes ventilation for heat dissipation, contributing to stable performance under continuous use.
- Width
- 17.30" (439.42 mm)
- Depth
- 10.10" (256.54 mm)
- Height
- 1.70" (43.18 mm)
- Weight
- 6.48 lb (2939.28 g)
Highlights
- 50 Gigabit Ethernet ports for extensive device connectivity
- Layer 2 managed switch with IGMP snooping and spanning tree support
- Rack-mountable 1U form factor for professional installation
- Uplink port enables connection to core network equipment
- Supports twisted pair cabling up to 100 meters
- Power consumption of 35.40 W for energy-efficient operation
- Lifetime warranty for long-term reliability assurance
- Refurbished condition with rigorous quality testing
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | SG250-50-K9-NA-RF |
| Brand Name | Cisco |
| Product Series | 250 |
| Product Model | SG250-50 |
| Product Name | SG250-50 50-Port Gigabit 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 Network |
| Media & Performance | |
| Media Type Supported | Twisted Pair |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 1000Base-X |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| Power Source | Power Supply |
| Redundant Power Supply Supported | No |
| Power Consumption | 35.40 W |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Height | 1.70" (43.18 mm) |
| Width | 17.30" (439.42 mm) |
| Depth | 10.10" (256.54 mm) |
| Weight (Approximate) | 6.48 lb (2939.28 g) |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
How many devices can I connect to this switch?
The Cisco SG250-50 provides 50 Gigabit Ethernet ports, allowing you to connect up to 50 network devices such as computers, printers, servers, and IP phones. This high port density supports growing networks without requiring additional switches, simplifying your infrastructure.
What management features does this Layer 2 switch offer?
As a Layer 2 managed switch, the SG250-50 includes features like IGMP snooping for efficient multicast traffic handling, port mirroring for network monitoring, and spanning tree protocol for loop prevention. It also supports VLAN configuration, QoS settings, and a web-based interface for easy administration.
Is this switch rack-mountable?
Yes, the SG250-50 has a rack-mountable form factor designed for 19-inch standard server racks. It occupies 1U of rack space (1.70" in height), making it suitable for data closets or server rooms where organized cable management and space efficiency are priorities.
Does this switch support Power over Ethernet (PoE)?
No, the Cisco SG250-50 does not support Power over Ethernet. It is a non-PoE switch that provides data connectivity only. If you need PoE to power devices like IP cameras or wireless access points, consider a PoE-enabled switch model.
What is the warranty on this refurbished switch?
This refurbished Cisco SG250-50 comes with a lifetime limited warranty. The refurbishment process includes thorough testing and quality checks to ensure the switch meets performance standards, providing reliable operation and support for your network investment.
Can I use this switch for uplinking to a core router?
Yes, the SG250-50 includes an uplink port that allows you to connect it to a core router or another switch for network aggregation. This enables scalable expansion and efficient traffic flow between different network segments, supporting hierarchical network designs.
| Qty | Price | Available |
|---|
