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Cisco SG250-50HP-K9NA-RF 50-Port Gigabit PoE Smart Switch - 50 Ports - 267. 20W PoE - Layer 2 Managed - Rack-Mountable - Refurbished
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Product Features
Technical Overview
This switch features 50 Gigabit Ethernet ports, all supporting PoE, with an uplink port for cascading to other network devices. It operates on Gigabit Ethernet technology (1000Base-X) over twisted pair cabling, providing high-speed data transfer up to 100 meters per connection.
The 267.20W power budget ensures adequate power delivery for connected PoE devices, while the internal power supply maintains stable voltage. Layer 2 switching enables VLANs, QoS, and security features for optimized network traffic management.
Relevant factors for this section include Total Number of Network Ports, Uplink Port, 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.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The Cisco SG250-50HP combines high port density with PoE capabilities in a compact, managed switch. Its refurbished condition offers a cost-effective solution for businesses needing reliable network infrastructure without the premium of new hardware.
PoE Readiness
With 267.20W of PoE budget, this switch powers devices like IP phones, cameras, and access points directly through Ethernet cables, reducing installation complexity and costs.
- Supports PoE on all 50 ports
- Eliminates need for separate power adapters
- Simplifies cable management
Management Flexibility
Layer 2 management provides control over network setup, VLAN configuration, and traffic prioritization, enhancing security and performance for business operations.
- Enables VLAN segmentation
- Supports QoS for critical traffic
- Offers monitoring and troubleshooting tools
Deployment / Use Cases
This switch is ideal for environments requiring extensive wired connectivity with PoE support. Its 50-port design accommodates growing networks, while the rack-mountable form factor suits server rooms, network closets, and structured cabling installations.
Common use cases include office networks with multiple IP phones and wireless access points, retail point-of-sale systems, school computer labs, and small business backbones. The uplink port allows expansion to additional switches or routers, supporting scalable network architectures.
Office Networking
Deploy in offices to connect workstations, printers, and PoE devices like VoIP phones and security cameras, with management features for segmented departmental networks.
Education and Retail
Use in classrooms or retail spaces to support high-density device connections, with PoE for interactive displays or digital signage, and rack mounting for secure installation.
Physical Profile
The switch measures 17.30" wide, 13.80" deep, and 1.70" high, fitting standard 19-inch rack enclosures with a low 1U profile. Its approximate weight of 10.58 lb ensures stable mounting, while the compact design optimizes rack space efficiency in constrained environments.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.70" (43.18 mm), 17.30" (439.42 mm), 13.80" (350.52 mm), 10.58 lb (4799.01 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 17.30" (439.42 mm)
- Depth
- 13.80" (350.52 mm)
- Height
- 1.70" (43.18 mm)
- Weight
- 10.58 lb (4799.01 g)
Highlights
- 50 Gigabit Ethernet ports with PoE support
- 267.20W total PoE budget for powering connected devices
- Layer 2 managed switching for VLANs, QoS, and security
- Uplink port for network expansion and cascading
- Rack-mountable 1U form factor for professional installation
- Gigabit Ethernet technology over twisted pair cabling
- Refurbished condition with lifetime limited warranty
- Supports 1000Base-X network technology for high-speed data transfer
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | SG250-50HP-K9NA-RF |
| Brand Name | Cisco |
| Product Series | 250 |
| Product Model | SG250-50HP |
| Product Name | SG250-50HP 50-Port Gigabit PoE Smart Switch |
| Product Condition | Refurbished |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 50 |
| 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-X |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| PoE (RJ-45) Port | Yes |
| Power Source | Power Supply,PoE |
| Power Consumption | 267.20 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) | 10.58 lb (4799.01 g) |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
How many PoE devices can this switch power simultaneously?
The Cisco SG250-50HP-K9NA-RF has a total PoE budget of 267.20W, which can power multiple PoE devices such as IP phones, wireless access points, or security cameras. The exact number depends on the power requirements of each connected device, but with 50 PoE-capable ports, it supports extensive deployments in office or retail settings.
What management features does this Layer 2 switch offer?
This switch provides Layer 2 management capabilities, including VLAN support for network segmentation, Quality of Service (QoS) for prioritizing critical traffic, and security features like access control lists. It is manageable through a web interface or command-line interface, allowing configuration and monitoring for optimized network performance and control.
Is this switch suitable for rack mounting in a server room?
Yes, the Cisco SG250-50HP-K9NA-RF is designed for rack mounting with a standard 19-inch rack form factor. Its dimensions of 17.30" width, 13.80" depth, and 1.70" height (1U) make it ideal for installation in server rooms, network closets, or structured cabling environments, ensuring organized and secure deployment.
What type of cables does this switch support?
This switch supports twisted pair Ethernet cables, such as Cat5e, Cat6, or Cat6a, for Gigabit Ethernet connections. It uses 1000Base-X network technology, enabling high-speed data transfer up to 100 meters per cable run, which is standard for most office and commercial networking applications.
Does the switch include an uplink port for network expansion?
Yes, the Cisco SG250-50HP-K9NA-RF includes an uplink port, allowing you to cascade to other switches or connect to routers and network devices. This feature supports scalable network architectures, making it easy to expand your local area network as your business grows or connectivity needs increase.
What is the warranty on this refurbished switch?
This refurbished Cisco SG250-50HP-K9NA-RF comes with a lifetime limited warranty. This warranty provides assurance of reliability and support, covering defects in materials or workmanship for the lifespan of the product, making it a dependable choice for business networking investments.
| Qty | Price | Available |
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