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Cisco CBS250-48P-4XNA-RF 250 Series Managed Switch - 48 Port Gigabit PoE+ with 4x SFP+ Uplinks - 370W Budget - Rack-Mountable
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Product Features
Technical Overview
This switch operates as a full-featured Layer 2 managed device, supporting essential protocols such as IGMP snooping, port mirroring, and spanning tree for optimized network performance and stability. The 48 Gigabit Ethernet ports deliver 10/100/1000 Mbps speeds with PoE+ support, while the four SFP+ expansion slots enable 10 Gigabit uplinks using fiber or copper transceivers for high-bandwidth aggregation.
Power efficiency is a key design focus, with a typical consumption of 61.53 watts and dual power sources including an internal power supply and PoE+ input. The switch supports both twisted-pair and optical fiber media, allowing flexible deployment across varied distances and environments. Environmental compliance with WEEE directives underscores its responsible manufacturing and end-of-life handling.
This section brings together practical product details such as Total Number of Network Ports, Network (RJ-45), Uplink Port, Media Type Supported, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The Cisco CBS250-48P-4X combines high port density with advanced management features, offering a future-proof foundation for growing networks. Its substantial PoE budget allows simultaneous power delivery to multiple devices, streamlining deployments and reducing the need for additional power injectors or outlets.
High-Speed Uplink Readiness
Four SFP+ slots provide 10 Gigabit connectivity for backbone links, server connections, or inter-switch stacking, ensuring low-latency data transfer and scalability.
- Supports 10GBase-X and fiber optics
- Dedicated non-shared slots for full bandwidth
- Enables long-distance fiber runs up to kilometers
Professional Rack Integration
The 1U rack-mountable design with precise dimensions (1.73" x 17.50" x 13.78") fits standard 19-inch racks, facilitating organized cable management and secure installation in data centers or wiring closets.
- Standard 19-inch rack width
- Front-to-back airflow for cooling
- Sturdy metal construction for durability
Deployment / Use Cases
This switch is ideal for medium to large business networks requiring reliable PoE delivery and managed switching capabilities. Common deployments include office environments, retail locations, educational campuses, and healthcare facilities where multiple connected devices demand stable power and data connectivity.
The 48 PoE+ ports make it well-suited for powering VoIP phone systems, wireless access points for seamless Wi-Fi coverage, and IP surveillance cameras across buildings. The SFP+ uplinks enable connections to core switches or servers, supporting bandwidth-intensive applications like video conferencing, file sharing, and virtualized workloads.
Unified Communications
Deploy as an access layer switch for VoIP systems, providing both data and power to IP phones while ensuring quality of service (QoS) for clear voice traffic.
Wireless Network Expansion
Power and connect multiple Wi-Fi access points from a central location, simplifying wireless network management and reducing AC adapter clutter.
Physical Profile
The switch features a compact 1U rack-mountable chassis with dimensions of 1.73 inches wide, 17.50 inches high, and 13.78 inches deep, designed for efficient use of rack space. Its metal construction ensures durability, while the front-panel port layout allows easy cable access and LED status indicators for quick monitoring. The environmentally friendly design complies with WEEE regulations, supporting responsible recycling practices.
- Width
- 1.73" (43.94 mm)
- Depth
- 13.78" (350.01 mm)
- Height
- 17.50" (444.50 mm)
Highlights
- 48 Gigabit Ethernet PoE+ ports for high-density connectivity
- 4 SFP+ uplink slots supporting 10 Gigabit fiber or copper
- 370W total PoE budget to power multiple devices simultaneously
- Layer 2 managed switch with IGMP snooping and spanning tree
- Rack-mountable 1U form factor for professional installation
- 61.53W power consumption for energy-efficient operation
- Lifetime limited warranty for long-term reliability
- Supports optical fiber for long-distance network segments
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CBS250-48P-4XNA-RF |
| Brand Name | Cisco |
| Product Series | 250 |
| Product Model | CBS250-48P-4X |
| Product Name | 250 CBS250-48P-4X Ethernet Switch |
| Product Condition | Refurbished |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 48 |
| Network (RJ-45) | Yes |
| Uplink Port | Yes |
| Modular | Yes |
| Port/Expansion Slot Details | 48 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+ |
| Shared SFP Slot | No |
| Number of SFP+ Slots | 4 |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| PoE (RJ-45) Port | Yes |
| PoE Budget | 370 W |
| Power Source | Power Supply,PoE+ |
| Power Consumption | 61.53 W |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Height | 17.50" (444.50 mm) |
| Width | 1.73" (43.94 mm) |
| Depth | 13.78" (350.01 mm) |
| Miscellaneous | |
| Environmentally Friendly | Yes |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
How many devices can this switch power with PoE?
The switch has a 370W PoE budget, which can support 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 typical PoE+ devices drawing up to 30W, it can power around 12-15 devices simultaneously under full load.
What are the SFP+ slots used for?
The four SFP+ slots are expansion ports for high-speed uplinks, allowing you to connect the switch to other switches, servers, or network backbone using 10 Gigabit fiber or copper transceivers. They support 10GBase-X network technology and enable longer-distance connections compared to standard copper Ethernet, ideal for aggregating traffic or linking separate network segments.
Is this switch manageable, and what features does it offer?
Yes, this is a fully manageable Layer 2 switch. It includes features such as IGMP snooping for efficient multicast traffic handling, port mirroring for network monitoring and troubleshooting, and spanning tree protocol for preventing network loops. These management capabilities provide greater control over network performance, security, and stability compared to unmanaged switches.
Can this switch be mounted in a standard server rack?
Absolutely. The switch is designed for rack mounting with a 1U form factor, fitting standard 19-inch wide server racks. Its dimensions are 1.73 inches wide, 17.50 inches high, and 13.78 inches deep, making it easy to integrate into data centers, wiring closets, or network cabinets for organized and secure installation.
What is the warranty coverage for this refurbished switch?
This refurbished Cisco switch comes with a lifetime limited warranty, providing long-term assurance against defects in materials and workmanship. This warranty supports reliable deployment in business environments, though it's recommended to review specific terms for details on coverage duration and support channels.
Does this switch support fiber optic connections?
Yes, the switch supports optical fiber media through its SFP+ slots. You can use compatible SFP+ transceivers to connect fiber optic cables, enabling data transmission over longer distances—up to kilometers depending on the transceiver type—with high bandwidth and immunity to electromagnetic interference, suitable for backbone or uplink connections.
What uplink, SFP, fiber, or media support detail is listed?
The warranty or support detail listed is Yes, giving buyers a clearer picture of expected coverage after purchase.
Does the product support PoE or wireless networking?
Connectivity support is listed in the product specifications, including the relevant wireless or port options when available.
| Qty | Price | Available |
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