Cisco CBS350-48XT-4X Full English Product Description
1. Short Sales Title (For Quotation & E-commerce Listing)
Cisco CBS350-48XT-4X Business 350 Series 48-Port 10GBase-T Non-PoE Fully Managed Layer 3 Switch, Global Standard Version, 4 Dedicated 10G SFP+ High-Speed Uplink Slots (4X = four 10G fiber uplinks, distinct from 4G 1G SFP uplink models), Dual-Stack IPv4/IPv6 Dynamic Routing, True Stackable, 1RU Rackmount High-Density All-10G Copper Aggregation Switch
2. Official Product Overview
The Cisco CBS350-48XT-4X is a high-density all-10G non-PoE fully managed enterprise Layer 3 switch within Cisco Business 350 global portfolio. The suffix XT stands for 48×10GBase-T twisted-pair copper access ports (all 10G speed, no Gigabit-only interfaces), while 4X represents four standalone dedicated 10G SFP+ fiber uplink ports for high-bandwidth cross-building fiber backbone backhaul, clearly differentiated from 4G models equipped with only 1G SFP uplink interfaces. It is designed for large-scale high-performance 10G network environments, including enterprise high-bandwidth workstation power layers, multi-building campus core aggregation racks, media production video editing studios, and optical storage server aggregation without PoE power delivery requirements.
Different from entry-level CBS250 smart switches, the CBS350 platform delivers complete enterprise-grade managed capabilities: dynamic RIPv2 Layer 3 routing, true single-IP stacking (supports up to 4 switches), comprehensive anti-spoofing security toolkit, sFlow traffic monitoring and full-featured multicast control. This all-10G copper switch eliminates traditional Gigabit bandwidth bottlenecks, optimized for low-latency 4K/8K video workflow, bulk multi-TB storage file transmission and mass high-volume office data traffic. It supports redundant long-distance 10G fiber interconnection via four independent SFP+ uplink slots in one compact 1RU rack unit.
It features 48×10GBase-T RJ45 copper access ports plus 4 independent dedicated 10G SFP+ fiber uplink slots, providing 52 total 10-Gigabit wire-speed interfaces for redundant multi-link high-speed backbone deployment. Powered by a high-performance ARM processor with 512MB DRAM and 256MB flash memory, it delivers 1040 Gbps non-blocking switching capacity and 755.81 Mpps wire-speed forwarding rate for 64-byte frames, equipped with a large 3MB shared dynamic packet buffer to eliminate congestion under massive 10G video streaming, storage batch transfers and cross-site enterprise video conferences. Optimized multi-variable-speed fan cooling ensures stable 24/7 continuous rack operation in core data rooms, media production core server racks and campus central equipment closets.
3. Port & Hardware Specifications
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48 × 10GBase-T RJ45 copper access ports, auto-negotiate 10G/5G/2.5G/1G/100M, No PoE power supply
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4 × dedicated 10G SFP+ uplink slots (fiber-only non-combo design, 4X = four 10G high-speed uplink ports, completely separated from 4G 1G-only SFP uplink models)
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Supported Cisco transceivers: Gigabit SFP (MGBSX1/MGBLX1/MGBLH1/MGBT1), 10G SFP+ (SFP-10G-SR, SFP-10G-LR, SFP-10G-LX, copper twinax SFP+)
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No built-in PoE power module
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Switching Capacity: 1040 Gbps Non-Blocking
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Forwarding Rate (64-byte packets): 755.81 Mpps
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Shared Packet Buffer: 3 MB
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MAC Address Table: 16K entries; Jumbo Frame support up to 9000-byte MTU
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Dual console ports: RJ45 serial console + mini USB port for offline local CLI configuration
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Front-panel USB Type-A port for offline config backup & firmware upgrade
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True stacking capability: stack up to 4 CBS350 series switches under single IP unified management; cross-stack LAG, VLAN, QoS and remote port mirroring fully supported
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Universal internal AC power supply: 100–240V 50/60Hz global standard power cord
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Intelligent variable-speed multi-fan thermal cooling system, automatically adjusts fan speed based on internal temperature load
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Form Factor: 1RU standard rackmount chassis, support rack mount, wall mount and desktop placement
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Dimensions: 445 × 350 × 44 mm (17.5 × 13.78 × 1.73 inches)
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Weight: 2.95 kg (6.50 lbs)
4. Comprehensive Layer 2 Switching Functions
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Up to 4096 IEEE 802.1Q tagged VLANs, port-based VLAN, voice VLAN, guest VLAN, private VLAN, dedicated management VLAN
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8 priority egress queues with Strict Priority / WRR / SPQ QoS scheduling to prioritize low-latency VoIP, 10G 4K/8K surveillance video and enterprise high-volume business data traffic
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IEEE 802.3ad LACP link aggregation, multiple LAG groups for bandwidth expansion & link redundancy, cross-stack LAG fully supported
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IGMP Snooping v1/v2/v3 with built-in IGMP Querier, supporting up to 1024 multicast groups for IPTV and mass 10G fiber backhaul IP surveillance
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LLDP & LLDP-MED automatic endpoint discovery for 10G workstations, fiber-connected cameras and high-speed wireless gateways
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Port mirroring, VLAN mirroring, RSPAN remote mirroring, RSTP/MSTP/PVST+ spanning tree, BPDU Guard, Root Guard, Loop Guard
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Broadcast/multicast/unicast storm control to prevent high-volume 10G link flooding failures
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Enterprise anti-spoofing toolkit: DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard, static IP/MAC/Port Binding
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sFlow traffic monitoring for real-time 10G uplink flow-level bandwidth analysis and network fault troubleshooting
5. Advanced Dual-Stack Dynamic Layer 3 Routing
Far exceeding static-only routing on CBS250 smart switches, CBS350 provides full wire-speed Layer 3 forwarding:
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Dynamic routing protocol: RIPv2 for IPv4
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Up to 990 IPv4 static routes, 990 IPv6 static routes, 128 Layer 3 VLAN interfaces
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Native dual-stack IPv4 & IPv6 wire-speed forwarding, CIDR aggregation, full IPv6 first-hop security (ND Inspection, RA Guard)
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Built-in IPv4 DHCP Server & DHCP Relay with Option 82, UDP relay functionality
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Policy-Based Routing (PBR) for flexible traffic steering across fiber-separated network segments
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Direct inter-VLAN routing without external routers to reduce core gateway latency and bandwidth load for large-scale cross-building 10G backbone traffic
6. Enterprise-Grade Multi-Layer Security Suite
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IEEE 802.1X port-based authentication with RADIUS/TACACS+ centralized access control, web-based captive portal authentication
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Port security, static/dynamic MAC address binding, automatic port shutdown for unauthorized 10G-connected terminals
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Comprehensive DoS attack suppression, hardware accelerated L2-L4 ACL traffic filtering
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Encrypted management channels: HTTPS web GUI, SSH multi-privilege CLI, SCP file transfer, SNMPv3 secure remote monitoring
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Persistent syslog event logging, built-in cable diagnostic tools, mandatory password complexity policy
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Independent guest network isolation, Private VLAN Edge (PVE) for client separation
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Secure boot, encrypted configuration file storage to prevent unauthorized configuration tampering, IPv6 ND Inspection & RA Guard to block IPv6 fiber link spoofing attacks
7. Energy-Saving Green Technologies
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IEEE 802.3az Energy Efficient Ethernet (EEE): auto power reduction for idle 10G copper and SFP+ fiber links
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Dynamic power tuning based on link status to cut unnecessary power consumption
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Port LED dimming or full shutdown mode for unmanned fiber wiring closets
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Intelligent variable fan speed adjustment to reduce power draw and noise under light traffic load
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Optimized hardware thermal design with balanced heat dissipation and extended service lifespan
8. Multi-Mode Local & Remote Management
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Intuitive graphical web management interface (HTTP/HTTPS) with basic & advanced operation modes
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Dual offline local console access: serial RJ45 + mini USB port for offline CLI configuration
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SSH secure remote command line management with multi-user privilege levels (1 / 7 / 15)
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SNMP v1/v2c/v3 compatible with third-party network monitoring platforms, native sFlow support
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TFTP/SCP/offline USB firmware upgrade, dual redundant firmware images for reliable zero-downtime upgrades
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SNTP time synchronization, ping & traceroute diagnostic tools, Smartport auto-provisioning templates for 10G fiber endpoints
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Single IP stacking management for centralized batch control of up to 4 stacked CBS350 switches
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Fully compatible with Cisco Business Dashboard & Cisco Business Mobile App for unified topology visualization and zero-touch all-10G network deployment
9. Physical & Environmental Parameters
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Operating Temperature: -5°C to 50°C; Storage Temperature: -25°C to 70°C
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Operating Humidity: 10%–90% non-condensing relative humidity
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Global compliance standards: CE, RoHS, UL, FCC Class A
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MTBF: 909,838 hours at 25°C ambient temperature
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Warranty: Cisco Limited Lifetime Hardware Warranty
10. Typical Deployment Scenarios
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Large enterprise high-performance core access switch for mass 10G video editing workstations and centralized high-capacity NAS storage
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Global multi-building campus backbone aggregation switch with 10G SFP+ uplinks interconnecting office, classroom and workshop buildings
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Professional media production studio full 10G copper network for low-latency 4K/8K video workflow and optical storage access
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Large retail chain core data switch connecting remote store POS terminals and full wireless coverage via 10G fiber backbone
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Stackable multi-switch scalable enterprise network leveraging true stacking and dynamic Layer 3 routing with high-bandwidth 10G uplink capacity
11. Standard Package Contents
1 × Cisco CBS350-48XT-4X Non-PoE All-10G Fully Managed Switch (Global Standard Version)
1 × Global standard AC power cord
Rack mounting brackets and installation screws
Quick Start Guide & global regulatory compliance documents
Short Commercial Version (For Product Ads & Listing Titles)
The Cisco CBS350-48XT-4X is a global non-PoE all-10G fully managed Layer 3 switch with 48×10GBase-T copper access ports and 4 dedicated 10G SFP+ high-speed fiber uplink ports (4X = four 10G fiber uplinks, strictly differentiated from 1G SFP 4G models). Featuring dynamic dual-stack IPv4/IPv6 Layer 3 routing, true stacking capability, enterprise anti-spoofing security, full QoS and intelligent variable-speed fan thermal design, it delivers non-blocking ultra-high-capacity pure 10G data connectivity for high-performance workstations, media editing equipment and optical storage in large enterprise, media studio and fiber-centric campus core networks, supporting rack/wall/desktop deployment, energy-efficient hardware and Cisco Limited Lifetime Hardware Warranty.
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