High-Density PoE+ and 10 Gbps Backbone — The Cisco CBS350-48FP-4X-CN delivers robust enterprise-class connectivity, scalable uplinks, and comprehensive management for growing business networks.
Product Description
The Cisco CBS350-48FP-4X-CN is a 48-port managed Gigabit PoE+ Ethernet switch in the Cisco Business 350 Series that combines high-density PoE+ power and scalable 10 Gbps uplinks with advanced Layer 2 features and basic Layer 3 routing capabilities. Designed for medium to large business LANs, it provides ample PoE+ power — up to ~740 W — to support all connected devices such as VoIP phones, wireless access points, and security cameras.
Model Type: Managed Gigabit Ethernet Switch (Layer 2 + Basic Layer 3)
Category: Cisco Business 350 Series High-Density PoE+ Switch with 10 Gbps Uplinks
Key Features
• 48 × 10/100/1000 Mbps Gigabit PoE+ Ports — All 48 RJ-45 ports support IEEE 802.3af/at PoE+ with a total PoE budget of ~740 W, powerful enough to run IP phones, wireless APs, IP cameras, and PoE-powered IoT devices without separate injectors.
• 4 × 10 Gbps SFP+ Uplink Ports — High-speed fiber uplinks provide scalable backbone connectivity and network expansion to core switches and aggregation layers.
• High Switching Performance — 176 Gbps non-blocking switching capacity and 130.94 Mpps forwarding rate for smooth, high-throughput network performance.
• Layer 2 + Basic Layer 3 Support — Offers VLANs, static IPv4/IPv6 routing (up to 990 routes), inter-VLAN routing, and access control lists (ACLs) to support medium-size enterprise traffic segmentation and routing needs.
• Advanced Security & QoS — Includes DHCP snooping, IP Source Guard, dynamic ARP inspection, IEEE 802.1x, ACLs, and priority queuing to secure and optimize network traffic.
• Stacking-Ready Architecture — Supports true hardware stacking of up to 4 units into a single logical switch with failover and centralized management.
• Energy Efficient Design — Compliant with IEEE 802.3az Energy Efficient Ethernet, reducing power consumption during low traffic conditions.
• Flexible Management Options — Manage via Cisco Business Dashboard, web UI, CLI, SNMP, or USB for setup, monitoring, and firmware updates.
Technical Specs at a Glance
| Specification | Details |
|---|---|
| Ports | 48 × Gigabit PoE+ RJ-45 + 4 × 10 Gbps SFP+ uplinks |
| Switching Capacity | 176 Gbps |
| Forwarding Rate | 130.94 Mpps |
| PoE Standard | IEEE 802.3af/at PoE+ |
| Total PoE Budget | ~740 W |
| Layer 3 Features | IPv4/IPv6 static routing, policy-based routing, inter-VLAN routing |
| MAC Address Table | ~16,000 entries |
| Packet Buffer | ~3 MB |
| CPU | 800 MHz ARM |
| Memory | ~512 MB DRAM, ~256 MB flash |
| Management | Cisco Business Dashboard, Web UI, CLI, SNMP |
| Stacking | Up to 4 units hardware stacking |
| Dimensions | ~445 × 350 × 44 mm (1U) |
| Weight | ~5.8 kg |
| Operating Temp | –5 °C to 50 °C |
Typical Use Cases
• High-density access layer for enterprise or campus networks requiring strong PoE support for devices.
• Aggregation and backbone connectivity across floors or buildings with 10 Gbps uplinks.
• VLAN-segmented networks with inter-VLAN routing needs.
• Managed environments requiring advanced security and traffic policies.
• Scalable setups with hardware stacking and centralized management.








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