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Cisco SG220-50-K9-NA-RF 50-Port Gigabit Smart Plus Switch - 48 RJ45 + 2 SFP Combo - Managed Layer 2 - 1U Rack-Mountable - Refurbished
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Product Features
Technical Overview
This switch operates at Layer 2 of the OSI model, supporting switching and basic routing functions essential for segmenting network traffic and improving security. The 48 RJ45 ports auto-negotiate between 10/100/1000 Mbps speeds, while the two combo SFP slots allow for fiber optic or twisted pair uplinks, providing flexibility for long-distance connections or high-bandwidth backbone links.
Power is supplied through an internal power supply with a typical consumption of 39.90 watts, making it energy-efficient for continuous operation. The switch supports both twisted pair and optical fiber media types, accommodating standard Cat5e/6 cabling for up to 100-meter runs or SFP modules for fiber connectivity.
Relevant factors for this section include Total Number of Network Ports, Modular, Port/Expansion Slot Details, 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 SG220-50-K9-NA-RF combines high port count with manageable features, providing a cost-effective solution for growing networks. Its refurbished condition ensures reliable performance at a reduced price, backed by a lifetime warranty for long-term peace of mind.
High Port Density
With 50 total ports, this switch connects numerous devices without requiring additional hardware, reducing clutter and simplifying network expansion.
- 48 standard Gigabit Ethernet ports
- 2 combo SFP uplink slots
- Supports up to 50 simultaneous connections
Managed Layer 2 Features
The Smart Plus management interface offers essential controls for network optimization and security, accessible via a web-based GUI or CLI.
- VLAN support for network segmentation
- Quality of Service (QoS) for traffic prioritization
- Basic security protocols and monitoring
Deployment / Use Cases
This switch fits well in environments needing a balance of port density and basic management, such as branch offices, retail stores, or small data centers. The combo SFP slots enable fiber connections for longer distances or higher bandwidth requirements, while the 1U rack-mountable form factor integrates seamlessly into standard server racks.
Office Network Backbone
Ideal for connecting multiple workstations, printers, and IP phones in a small to medium office, with SFP uplinks for connecting to servers or other switches.
- Centralized connectivity for up to 50 devices
- Fiber uplinks for server room connections
- Managed features for traffic control
Educational or Retail Environments
Suited for classrooms or retail spaces where numerous devices require stable, high-speed connections, with wall-mount or desktop placement options.
- Supports PoE devices with optional power injectors
- Compact 1U design for space-constrained racks
- Reliable performance for continuous use
Physical Profile
The switch measures 1.73 inches in height, 17.32 inches in width, and 7.91 inches in depth, fitting a standard 1U rack space. It weighs approximately 7.28 pounds, making it lightweight for easy installation in rack, wall, or desktop configurations. The compact design ensures efficient use of space in network closets or server rooms, with ventilation for stable thermal performance during operation.
- Width
- 17.32" (440 mm)
- Depth
- 7.91" (201 mm)
- Height
- 1.73" (44 mm)
- Weight
- 7.28 lb (3300 g)
Highlights
- 50 total network ports with 48 RJ45 and 2 SFP combo slots
- Gigabit Ethernet speeds (10/100/1000Base-T) across all ports
- Layer 2 managed switch with VLAN, QoS, and security features
- Supports twisted pair and optical fiber media types
- 1U rack-mountable, wall-mountable, or desktop form factor
- Low power consumption at 39.90 watts
- Refurbished condition with lifetime warranty
- Ideal for small to medium business network expansion
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | SG220-50-K9-NA-RF |
| Brand Name | Cisco |
| Product Line | Smart Plus |
| Product Series | 220 |
| Product Model | SG220-50 |
| Product Name | 50-Port Gigabit Smart Plus Switch |
| Product Condition | Refurbished |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 50 |
| Modular | Yes |
| Port/Expansion Slot Details | 48 x Gigabit Ethernet Network,2 x Gigabit Ethernet TP/SFP Combo |
| Media & Performance | |
| Media Type Supported | Twisted Pair,Optical Fiber |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 10/100/1000Base-T,1000Base-X |
| I/O Expansions | |
| Total Number of Expansion Slots | 2.0 |
| Expansion Slot Type | SFP (mini-GBIC) |
| Shared SFP Slot | Yes |
| Number of SFP Slots | 2 |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| Power Source | Power Supply |
| Power Consumption | 39.90 W |
| Physical Characteristics | |
| Compatible Rack Unit | 1U |
| Form Factor | Rack-mountable,Wall Mountable,Desktop |
| Height | 1.73" (44 mm) |
| Width | 17.32" (440 mm) |
| Depth | 7.91" (201 mm) |
| Weight (Approximate) | 7.28 lb (3300 g) |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
How many ports does this Cisco switch have, and what types are they?
The Cisco SG220-50-K9-NA-RF has 50 total network ports. This includes 48 standard Gigabit Ethernet RJ45 ports for connecting devices like computers and printers, plus 2 combo SFP slots that support either twisted pair or fiber optic uplinks. The combo slots allow flexibility for high-bandwidth or long-distance connections without sacrificing port density.
Is this switch manageable, and what Layer does it support?
Yes, this is a manageable switch operating at Layer 2. It supports essential management features such as VLANs for network segmentation, Quality of Service (QoS) for prioritizing traffic, and basic security protocols. This makes it suitable for organized networks where control over traffic flow and security is important, without the complexity of higher-layer routing.
Can this switch be mounted in a server rack?
Yes, the switch is designed for 1U rack-mountable installation, fitting standard 19-inch server racks. It also supports wall mounting or desktop placement, providing flexibility for different deployment environments. The compact dimensions (1.73"H x 17.32"W x 7.91"D) ensure it occupies minimal space while delivering high port density.
What is the power consumption of this switch?
The switch has a typical power consumption of 39.90 watts, supplied through an internal power source. This low power draw makes it energy-efficient for continuous operation, reducing electricity costs in business settings. It does not include PoE (Power over Ethernet) capabilities, so PoE devices would require separate power injectors or switches.
What does 'refurbished' mean for this product?
Refurbished indicates this switch has been professionally restored to full working condition, tested for performance, and cleaned. It comes with a lifetime warranty, ensuring reliability comparable to new units. This option provides a cost-effective way to acquire Cisco hardware with the same core functionality and support, ideal for budget-conscious deployments.
What types of cables and media does this switch support?
The switch supports both twisted pair cables (like Cat5e or Cat6) for standard Ethernet connections up to 100 meters, and optical fiber via SFP modules for the combo slots. This dual-media capability allows for cost-effective copper wiring in most scenarios, with the option for fiber uplinks where longer distances or higher bandwidth are needed, such as connecting to other switches or servers.
| Qty | Price | Available |
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