Cisco CBS250-48P-4X - 48-Port Gigabit PoE+ Smart Switch | 370W | 4x 10G SFP+ - Refresh

The Cisco CBS250-48P-4X is a 48-port Gigabit PoE+ smart managed switch built for small business, branch office, and enterprise edge deployments. It delivers 48x 10/100/1000 PoE+ ports with a 370W total PoE budget plus 4x 10 Gigabit SFP+ uplinks for high-speed fiber or DAC backbones — enough to power IP phones, wireless access points, IP cameras, and PoE LED lighting from a single 1U chassis. Performance is rated at 176 Gbps switching capacity and 130.94 Mpps forwarding rate, with Layer 3 IPv4/IPv6 static routing, VLANs, QoS, ACLs, and 802.1X managed through the Cisco Business Dashboard or on-box web GUI.

Cisco CBS250-48P-4X - Key Features & Benefits

• 48x Gigabit PoE+ Ports, 370W Budget: Every port delivers up to 30W of 802.3at PoE+ — power VoIP phones, 802.11ac/ax access points, PTZ IP cameras, and thin clients over a single cable without external injectors
• 4x 10G SFP+ Uplinks: Dedicated 10 Gigabit SFP+ ports for fiber, 10GBASE-T modules, or DAC cables — ideal for backbone aggregation, high-speed server connections, or stacking to a core switch
• High-Performance Switching Fabric: 176 Gbps switching capacity and 130.94 Mpps forwarding rate handle line-rate Gigabit on every port with headroom for 10G uplink bursts
• Layer 3 Static Routing & Advanced L2: IPv4/IPv6 static routing, 4094 VLANs, link aggregation, Spanning Tree (STP/RSTP/MSTP), and IGMP snooping — enterprise features without the cost of a fully managed switch
• Enterprise-Grade Security: 802.1X port authentication, DHCP snooping, Dynamic ARP Inspection, IPv4/IPv6 ACLs, DoS prevention, and port security to lock down access and defend against common network attacks
• Flexible Management: Configure through the Cisco Business Dashboard, Cisco Business Mobile app, on-box web GUI, CLI, or SNMP v1/v2c/v3 — centralized monitoring across multiple sites with minimal IT overhead
• Energy Efficient & Rack-Ready: IEEE 802.3az Energy Efficient Ethernet, intelligent fan, and a 1U rack-mountable design keep power and noise low in wiring closets, classrooms, and retail back-of-house

Cisco CBS250-48P-4X - Technical Specifications

• Manufacturer: Cisco
• Part Number: CBS250-48P-4X-NA-RF (Cisco Refresh, North America)
• Product Type: Smart Managed Gigabit PoE+ Switch with 10G SFP+ Uplinks
• Ports: 48x 10/100/1000 RJ45 PoE+ • 4x 10 Gigabit SFP+ uplinks
• PoE: 802.3at PoE+, up to 30W per port • 370W total budget
• Switching Capacity: 176 Gbps
• Forwarding Rate: 130.94 Mpps (64-byte packets)
• MAC Address Table: 8,000 entries
• VLANs: 4,094 supported
• Packet Buffer: 3 MB
• Routing: IPv4 & IPv6 static routing
• Management: Cisco Business Dashboard • Web GUI • CLI • SNMP v1/v2c/v3 • RMON
• Security: 802.1X • ACLs (IPv4/IPv6/MAC) • DHCP snooping • DAI • port security
• Standards: 802.3/u/ab/z/ae/an, 802.1D/p/Q/s/w/X/ab, 802.3ad LACP, 802.3af/at PoE, 802.3az EEE
• Power: 100-240 VAC, 50/60 Hz, internal PSU • 1 fan
• Dimensions (W x D x H): 17.5 x 13.78 x 1.73 in (445 x 350 x 44 mm), 1U
• Weight: ~11.97 lbs (5.43 kg)
• Condition: Cisco Refresh (factory remanufactured and tested by Cisco)

Cisco CBS250-48P-4X - Frequently Asked Questions (FAQ)

• What is "Cisco Refresh" and how does it differ from a standard refurbished switch?
  Cisco Refresh is Cisco's own factory remanufacturing program. Units are inspected, tested, and certified by Cisco to meet original performance standards, and carry the -RF suffix on the SKU.
• How much PoE power does each port deliver, and is the 370W budget shared?
  Each port supports 802.3at PoE+ up to 30W. The 370W total budget is shared across all 48 ports, so the switch can fully power roughly 12 x 30W devices or ~24 x 15.4W (802.3af) devices simultaneously.
• Can the CBS250-48P-4X be stacked with other Cisco switches?
  No — the CBS250 series is a smart switch and does not support physical stacking. Multiple switches can be managed centrally through the Cisco Business Dashboard, but data-plane stacking is only available on the CBS350 series and higher.
• Is this a Layer 2 or Layer 3 switch?
  It is a Layer 2 switch with Layer 3 static routing for IPv4 and IPv6. It supports inter-VLAN routing for small to mid-size networks, but does not run dynamic routing protocols like OSPF or BGP.
• How is the switch managed, and does it require a cloud subscription?
  No subscription is required. It can be managed locally via web GUI, CLI, or SNMP, or centrally via the free Cisco Business Dashboard and Cisco Business Mobile app.

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