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Cisco CBS250-24P-4XNA-RF 250 Series 24-Port Gigabit PoE+ Switch with 4 SFP+ Uplinks - Layer 3 Managed - 195W PoE Budget - Rack-Mountable
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Product Features
Technical Overview
This switch operates at Layer 3, supporting advanced routing capabilities for improved network segmentation and traffic management. The 24 Gigabit Ethernet ports with PoE+ deliver both data and power up to 30W per port, with a total PoE budget of 195 watts to support multiple powered devices simultaneously.
The four SFP+ slots accept 10 Gigabit fiber or copper transceivers, enabling high-bandwidth uplinks to core switches or servers. Media support includes both optical fiber for long-distance runs and twisted pair copper for standard Ethernet connections, with network technologies covering 1000Base-T and 10GBase-X standards.
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 CBS250-24P-4X combines port density with power delivery in a compact managed switch, offering businesses a cost-effective solution for growing networks. The substantial PoE budget supports modern IP devices without requiring separate power injectors or electrical outlets at endpoint locations.
Managed Control
Full management capabilities provide granular control over network configuration, VLAN setup, quality of service policies, and security features. Administrators can optimize traffic flow, prioritize critical applications, and monitor network performance through the intuitive management interface.
Uplink Flexibility
Four SFP+ slots deliver flexible uplink options, allowing connections to other switches, routers, or servers using either fiber optics for distance immunity or copper for cost-effective short runs. This future-proofs your network backbone as bandwidth requirements increase.
Rack Integration
The 1U rack-mountable design with front-to-back airflow integrates seamlessly into standard server racks and network cabinets. The compact dimensions maximize rack space utilization while providing proper ventilation for reliable operation in enclosed environments.
Deployment / Use Cases
This switch excels in small to medium business environments where both data connectivity and device powering are required. The 24 PoE+ ports make it particularly suitable for offices deploying VoIP phone systems, wireless networks with multiple access points, or surveillance systems with IP cameras.
Educational institutions can use it in classroom buildings to support digital learning devices, while retail locations benefit from the combination of point-of-sale systems, inventory scanners, and security cameras on a single managed platform. The Layer 3 capabilities allow for departmental segmentation while maintaining inter-VLAN routing within the switch itself.
Small Business Core
Serve as the primary switching layer for offices with 20-50 users, providing both desktop connectivity and power to IP phones and wireless access points from a single unit.
Branch Office Deployment
Install in remote locations with limited IT staff, leveraging the management features for remote configuration and the PoE capabilities to simplify device installation without local electricians.
Physical Profile
The switch measures 1.70 inches in height, 17.50 inches in width, and 11.80 inches in depth, fitting standard 19-inch rack enclosures with included mounting hardware. The 8.11-pound weight makes it manageable for single-person installation in most rack configurations. Front-to-back cooling ensures proper airflow in enclosed spaces, while the metal construction provides durability for continuous operation in commercial environments.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.70" (43.18 mm), 17.50" (444.50 mm), 11.80" (299.72 mm), 8.11 lb (3678.63 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 17.50" (444.50 mm)
- Depth
- 11.80" (299.72 mm)
- Height
- 1.70" (43.18 mm)
- Weight
- 8.11 lb (3678.63 g)
Highlights
- 24 Gigabit Ethernet ports with PoE+ support for simultaneous data and power delivery
- Four SFP+ expansion slots for 10 Gigabit uplink connectivity using fiber or copper
- 195-watt total PoE budget to power multiple IP phones, cameras, and access points
- Layer 3 managed switching with advanced routing and traffic management capabilities
- Rack-mountable 1U form factor for organized installation in standard server racks
- 35.72-watt power consumption for energy-efficient operation
- Supports both optical fiber and twisted pair media types for flexible cabling
- Lifetime limited warranty coverage for long-term deployment confidence
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CBS250-24P-4XNA-RF |
| Brand Name | Cisco |
| Product Series | 250 |
| Product Model | CBS250-24P-4X |
| Product Name | 250 CBS250-24P-4X Ethernet Switch |
| Product Condition | Refurbished |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 24 |
| Network (RJ-45) | Yes |
| Uplink Port | Yes |
| Modular | Yes |
| Port/Expansion Slot Details | 24 x Gigabit Ethernet PoE+,4 x 10 Gigabit Ethernet Expansion Slot |
| Media & Performance | |
| Media Type Supported | Optical Fiber,Twisted Pair |
| Ethernet Technology | Gigabit Ethernet,10 Gigabit Ethernet |
| Network Technology | 1000Base-T,10GBase-X |
| I/O Expansions | |
| Total Number of Expansion Slots | 4.0 |
| Expansion Slot Type | SFP+ |
| Number of SFP+ Slots | 4 |
| Network & Communication | |
| Layer Supported | 3 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| PoE (RJ-45) Port | Yes |
| PoE Budget | 195 W |
| Power Source | Power Supply,PoE+ |
| Power Consumption | 35.72 W |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Height | 1.70" (43.18 mm) |
| Width | 17.50" (444.50 mm) |
| Depth | 11.80" (299.72 mm) |
| Weight (Approximate) | 8.11 lb (3678.63 g) |
| Miscellaneous | |
| Environmentally Friendly | Yes |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | Lifetime |
User Manual
FAQ
How many devices can this switch power with PoE?
The switch has a total PoE budget of 195 watts distributed across its 24 Gigabit Ethernet ports. Each port supports the PoE+ standard, delivering up to 30 watts per port. The actual number of devices depends on their individual power requirements—typical IP phones use 5-10 watts, wireless access points 10-20 watts, and IP cameras 5-15 watts. You could power approximately 15-20 standard IP phones or 8-12 wireless access points simultaneously within the 195-watt budget.
What are the SFP+ ports used for on this switch?
The four SFP+ expansion slots provide high-speed uplink connectivity at 10 Gigabit speeds. You can install compatible SFP+ transceivers to connect to other switches, routers, or servers using either fiber optic cables for longer distances (up to kilometers) or direct-attach copper cables for shorter runs within racks. These ports are ideal for backbone connections, linking to core network infrastructure, or connecting to high-performance servers that require greater bandwidth than standard Gigabit Ethernet provides.
What does Layer 3 switching capability provide?
Layer 3 switching enables the switch to perform basic routing functions between different IP subnets or VLANs without requiring a separate router. This allows for network segmentation where departments or device types are isolated in separate VLANs for security and traffic management, while still allowing controlled communication between them. The switch can make routing decisions based on IP addresses, implement access control lists, and support advanced networking protocols, providing more sophisticated traffic handling than basic Layer 2 switches.
Is this switch suitable for rack mounting?
Yes, this switch is designed for rack mounting with a standard 1U form factor that fits 19-inch wide server racks. The dimensions of 1.70 inches high, 17.50 inches wide, and 11.80 inches deep are compatible with most rack enclosures. The switch includes mounting ears for secure installation, and the front-to-back airflow design ensures proper cooling when mounted between other equipment in a rack. The 8.11-pound weight is manageable for single-person installation in most rack configurations.
What management features does this switch offer?
As a fully manageable switch, it provides web-based management, command-line interface access, and SNMP support for network monitoring. Administrators can configure VLANs, quality of service policies, port security, link aggregation, and storm control. The management capabilities allow for traffic prioritization, bandwidth allocation, and network segmentation to optimize performance for different applications and devices. These features provide granular control over network operations in business environments.
What type of warranty comes with this refurbished switch?
This refurbished Cisco switch comes with a lifetime limited warranty. This coverage provides long-term assurance for business deployments, protecting against defects in materials and workmanship. The warranty applies to the refurbished unit and is backed by Cisco's support infrastructure. For specific terms and conditions, consult the warranty documentation included with the product or available through Cisco's support channels.
| Qty | Price | Available |
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