Cisco Switch 48 Port Giga, Managed, 4X SFP 10G,
PoE (370W)\ CBS350-48P-4X

The Cisco CBS350-48P-4X is a powerful and reliable 48-port Gigabit managed switch designed to meet the growing demands of modern business networks. As part of Cisco’s Business 350 Series, this model provides a seamless combination of Gigabit connectivity, advanced Layer 3 features, Power over Ethernet (PoE+) support, and high-speed 10G fiber uplinks—making it ideal for small to mid-sized businesses, branch offices, and advanced enterprise edge deployments.
With a robust 370W PoE power budget, the CBS350-48P-4X can power a wide range of network devices including IP phones, wireless access points, surveillance cameras, and more, while delivering high-speed data connectivity and intelligent management.
Key Features:
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Ports: 48 x 10/100/1000 Gigabit Ethernet PoE+ ports
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Uplinks: 4 x 10G SFP+ for high-speed fiber connections
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PoE Budget: Up to 370W, supporting IEEE 802.3af/at (PoE/PoE+)
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Switching Capacity: 176 Gbps
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Forwarding Rate: 130.95 Mpps
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Layer 3 Capabilities: Static routing, RIP, VLAN routing
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Management: Web GUI, CLI, SNMP, Cisco Business Dashboard
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Security: 802.1X, ACLs, DHCP snooping, DoS prevention, secure management
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Energy Efficient: IEEE 802.3az Energy Efficient Ethernet (EEE)
Designed for Power and Flexibility
The CBS350-48P-4X is an all-in-one solution that provides:
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High-density Gigabit access for workstations, printers, and endpoints
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PoE+ support for IP devices like phones, WAPs, and security cameras
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10G SFP+ uplinks for fast backbone and aggregation connectivity
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Advanced security and Layer 3 routing to optimize performance and control traffic flow
This makes it ideal for converged networks that require both data and power delivery through a single cable.
Power over Ethernet (PoE+) Simplifies Deployment
With a generous 370W PoE budget, this switch eliminates the need for additional power adapters and reduces installation complexity. It is perfect for:
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Voice over IP (VoIP) deployments
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Wireless access point infrastructure
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IP surveillance systems
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Digital signage and other powered network devices
Each port automatically detects connected PoE-enabled devices and supplies the required power accordingly.
Advanced Layer 3 Features for Smarter Networks
Unlike unmanaged or Layer 2 switches, the CBS350-48P-4X offers advanced routing capabilities, including:
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Static IP routing for internal LAN segmentation
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RIP protocol support for dynamic routing in small networks
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Inter-VLAN routing to improve performance and security in segmented environments
These features enable better control of network traffic and reduce the need for dedicated routers in LAN environments.
Easy to Deploy and Manage
The CBS350 series is built for simplicity and scalability:
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Intuitive web-based GUI and Cisco Business Dashboard
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Command-Line Interface (CLI) for experienced users
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Remote management through SNMP and RMON
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Automatic device discovery and configuration tools
This ease of use makes it an excellent choice for businesses without dedicated IT staff, while still offering the depth and power that professionals demand.
Reliable Security and Peace of Mind
Protect your network with enterprise-class security:
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802.1X port-based access control
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Layer 2/3 Access Control Lists (ACLs)
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DHCP snooping, IP-MAC binding, and ARP inspection
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Secure HTTPS/SSH management
These features guard against internal and external threats, ensuring a secure environment for sensitive business data and critical operations.
Conclusion
The Cisco CBS350-48P-4X is a powerful, feature-rich switch that delivers high-performance networking, intelligent PoE+, and 10G fiber uplinks in a reliable and cost-effective platform. Whether you’re deploying a smart office, expanding your network infrastructure, or managing voice and video applications, this switch offers the scalability, security, and simplicity you need to grow with confidence.
Capacity in Millions of Packets per Second (mpps) (64-byte packets) | 130.94 |
Switching Capacity in Gigabits per Second (Gbps) | 176.0 |
Total System Ports | 48 Gigabit Ethernet + 4 x 10G |
RJ-45 Ports | 48 x Gigabit Ethernet |
Combo Ports (RJ45 + Small form-factor pluggable [SFP]) | 4 x SFP+ |
Packet Buffer | 3 MB |
Unit dimensions (W x D x H) | 445 x 350 x 44 mm (17.5 x 13.78 x 1.73 in) |
Layer 3 | |
IPv4 routing | Wirespeed routing of IPv4 packets
Up to 990 static routes and up to 128 IP interfaces |
IPv6 routing | Wirespeed routing of IPv6 packets |
Layer 3 Interface | Configuration of Layer 3 interface on physical port, Link Aggregation (LAG), VLAN interface, or loopback interface |
Classless Interdomain Routing (CIDR) | Support for classless interdomain routing |
RIP v2 | Support for Routing Information Protocol version 2 for dynamic routing |
Policy-Based Routing (PBR) | Flexible routing control to direct packets to different next hop based on IPv4 or IPv6 Access Control List (ACL) |
DHCP Server |
Switch functions as an IPv4 DHCP server serving IP addresses for multiple DHCP pools/scopes
Support for DHCP options |
DHCP relay at Layer 3 | Relay of DHCP traffic across IP domains |
User Datagram Protocol (UDP) relay | Relay of broadcast information across Layer 3 domains for application discovery or relaying of Bootstrap Protocol (BOOTP)/DHCP packets |
Quality of Service | |
Priority levels | 8 hardware queues |
Scheduling | Strict priority and Weighted Round-Robin (WRR) |
Rate limiting | Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based; 2R3C policing |
Congestion avoidance | A TCP congestion avoidance algorithm is required to minimize and prevent global TCP loss synchronization |
iSCSI traffic optimization | A mechanism for giving priority to iSCSI traffic over other types of traffic |
Green (power efficiency) | |
Energy Detect | Automatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link up |
Cable length detection | Adjusts the signal strength based on the cable length. Reduces the power consumption for shorter cables. |
EEE Compliant (802.3az) | Supports IEEE 802.3az on all copper Gigabit Ethernet ports |
Disable port LEDs | LEDs can be manually turned off to save on energy |
Time-based port operation | Link up or down based on user-defined schedule (when the port is administratively up) |
Time-based PoE | PoE power can be on or off based on user-defined schedule to save energy |
General | |
Jumbo frames | Frame sizes up to 9K bytes. The default MTU is 2K bytes |
MAC table | 16K addresses |
Hardware | |
USB slot | USB Type-A slot on the front panel of the switch for easy file and image management |
Buttons | Reset button |
Cabling type |
Unshielded Twisted Pair (UTP) Category 5e or better for 1000BASE-T |
LEDs | System, Link/Act, PoE, Speed |
Flash | 256 MB |
CPU | 800 MHz ARM |
DRAM | 512 MB |
Environmental | |
Storage temperature | -13° to 158°F (-25° to 70°C) |
Operating humidity | 10% to 90%, relative, noncondensing |
Storage humidity | 10% to 90%, relative, noncondensing |
Warranty | Limited lifetime with next business day advance replacement (where available) |
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