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CBS250-48P-4G-UK
Cisco CBS250-48P-4G-UK Business 250 48-Port Gigabit PoE+ Swi...
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CBS250-48P-4G-UK combines 48 Gigabit PoE+ access ports with four fixed 1G SFP uplinks in a Layer 2+ smart-managed switch for small-business networks. Its rack-mount 1U chassis belongs to the Cisco Business 250 Series and connects computers, IP phones, cameras, and wireless access points. Dedicated fiber connections preserve the copper interfaces for endpoint cabling rather than sharing connector positions. The discontinued CBS250-48PP-4G-UK offers a smaller 195W PoE allocation for lower aggregate endpoint demand. Quality-of-service controls prioritize delay-sensitive communications through configurable traffic queues. For an existing Business 250 installation, the purchasing distinction is powered-port density with Gigabit upstream connectivity, rather than a modular uplink architecture or higher-speed access interfaces.
CBS250-48P-4G-UK price is is available on request. Get immediate quote.
Request bulk order quote for CBS250-48P-4G-UK for additional pricing. Browse the full Cisco CBS250 Business Switches series or explore all Cisco products.
104 Gbps switching capacity supports wire-speed, nonblocking forwarding across the access and uplink interfaces. 77.38 Mpps forwarding performance applies to 64-byte packets, making packet size relevant when comparing traffic profiles. 370W of shared PoE output requires aggregate endpoint allocations to remain within the available budget rather than assuming maximum output on every connection. Static IPv4 routing supports 32 routes across 16 IP interfaces for locally configured inter-VLAN paths; dynamic routing is not included. CBS250-48P-4G-UK carries 512 MB DRAM and 256 MB flash, while a 3 MB packet buffer is dynamically shared across the ports. STP/RSTP/MSTP and LACP provide loop control and link aggregation. Eight hardware queues support strict-priority or weighted scheduling. Browser management, an SSH CLI, Cisco Business Dashboard, and the Cisco Business mobile app provide administration paths. A single fan supplies active cooling. Worst-case input reaches 451.95W with PoE load; use input consumption rather than the output budget when planning electrical capacity.
Order CBS250-48P-4G-UK in new sealed or certified refurbished condition, and confirm condition and quantity on the PO. Certified refurbished units are inspected and bench-tested, with PoE output verified under load on every powered port, firmware verified, and configurations wiped to factory default. ORM provides up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units, plus 30-day returns on every condition, terms apply; Cisco's separate limited lifetime hardware warranty ends with support on October 31, 2029. POs are accepted, Net-30 is available for government, and enterprise or volume orders can specify stock and RMA handling across the UK, EU, US, and MEA, including RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G PoE+ / 4 x 1G SFP |
PoE Budget | 370W |
Max Power Draw | 451.95W |
Replaces | SG250-50P-K9-UK discontinued; end of sale October 30, 2021 |
Lifecycle Status | End of sale October 29, 2024 |
Replacement PID | C1200-48P-4G |
When a phone, camera, or wireless access point rollout changes endpoint demand, each powered port remains limited to 30W. Aggregate allocations must fit the shared switch budget rather than treating port availability as available power. Specify endpoint quantities and requested power allocations before the PO.
When standardizing configurations across several small-business sites, configuration-file transfers over SCP provide a common starting point for deployment. CLI privilege levels 1, 7, and 15 separate read-only, limited-write, and full administrative access. Specify the configuration baseline, file-transfer credentials, and permitted administrative roles before ordering.
When replacement hardware must be validated before installation, port mirroring can send traffic from four source ports to one analysis port. This supports examining selected interfaces through a designated analyzer connection rather than changing the cabling for each inspection. Specify the mirrored interfaces and analyzer connection during staging planning.
10G uplinks to distribution
CBS250-48P-4G-UK has fixed 1G SFP uplinks and cannot provide 10G connections. C1200-48P-4X retains 48 Gigabit access ports while supplying four 10G SFP+ uplinks.
Continuing software and vulnerability fixes
Software maintenance and vulnerability support ended October 29, 2025. C1200-48P-4G is the current replacement for buyers who cannot deploy hardware beyond that maintenance milestone.
Power above 30W per endpoint
CBS250-48P-4G-UK cannot power an endpoint requiring more than 30W from a single port, even when unused aggregate PoE capacity remains available elsewhere on the switch.
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| CBS250-48P-4G-UK |  CBS250-16P-2G-NA |  CBS250-8FP-E-2G |  CBS250-48PP-4G-UK |  CBS250-16P-2G-UK | |
|---|---|---|---|---|---|
| Depth | 350 mm | 297 mm | 185 mm | 350 mm | 297 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Desktop | Desktop | Rack-Mount 1U | Desktop |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS250-48P-4G-UK | CBS250-16P-2G-NA | CBS250-8FP-E-2G | CBS250-48PP-4G-UK | CBS250-16P-2G-UK |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 451.95W | 156.4W | 147.48W | 276.75W | 156.4W |
| SFP Ports | 4 x 1GbE | 2 x 1GbE | 2 x 1GbE (Combo, shared with RJ-45) | 4 x 1GbE | 2 x 1GbE |
| Switching Capacity | 104 Gbps | 36 Gbps | 20 Gbps | 104 Gbps | 36 Gbps |
| Weight | 5.43 kg | 2.38 kg | 1.53 kg | 5.43 kg | 2.38 kg |
| Width | 445 mm | 268 mm | 268 mm | 445 mm | 268 mm |
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CBS250-48P-4G-UK identifies a Business 250 smart switch: 48 denotes 48 Gigabit copper ports, P denotes PoE+ capability, and 4G denotes four Gigabit SFP uplinks. UK is a regional ordering suffix covering the United Kingdom and several other markets, not a software license tier.
Cisco Business 250 switches support a web UI, CLI through the RJ-45 console or SSH/Telnet, Cisco Business Dashboard, the Cisco Business mobile app, and SNMP. HTTP/HTTPS serves the browser interface; Cisco Network Plug and Play supports provisioning, and an embedded Dashboard probe runs on the switch.
CBS250-48P-4G-UK is discontinued: end of sale was October 29, 2024, and the last date of support is October 31, 2029. Software maintenance and vulnerability support ended October 29, 2025. C1200-48P-4G is the current replacement for migration purchases rather than another discontinued Business 250 model.
ORM offers CBS250-48P-4G-UK new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco's separate limited lifetime hardware warranty is bounded by October 31, 2029.
No additional license or subscription is required to operate CBS250-48P-4G-UK. All switching features are included with the hardware purchase, so there is no minimum software term to add to the PO. The UK suffix identifies regional ordering, not a separately activated software tier.
CBS250-48P-4G-UK replaces discontinued SG250-50P-K9-UK, whose end-of-sale date was October 30, 2021. The replacement provides 48 Gigabit access ports with PoE+ and four separate Gigabit SFP uplinks. CBS250-48P-4G-UK is also discontinued, so C1200-48P-4G is the current migration choice when progressing beyond both generations.
CBS250-48P-4G-UK provides a shared 370W PoE budget across 48 PoE+ ports, with a maximum of 30W per port. The aggregate budget does not permit every port to draw its per-port maximum simultaneously. Add endpoint power requirements before deciding how many phones, cameras, or access points to connect.
CBS250-48P-4G-UK supports 1G SFP transceivers including MGBSX1 for multimode fiber and MGBLX1 for single-mode fiber. Match the chosen transceiver to the installed fiber and the far-end connection. Four fixed SFP positions provide the uplinks; installing compatible optics does not increase their built-in Gigabit speed.
Yes, CBS250-48P-4G-UK supports static IPv4 routing between VLANs, with 32 static routes and 16 IP interfaces. This is manually configured routing rather than a dynamically learned routing design. Routed interfaces can be associated with physical ports, link aggregation groups, VLAN interfaces, or loopback interfaces.
Yes, the 48-port Gigabit PoE+ smart switch fits a standard rack and occupies 1U. The chassis measures 445 mm wide, 350 mm deep, and 44 mm high. A mounting kit accompanies the switch; verify the required mounting hardware is included with the selected condition.
CBS250-48P-4G-UK uses an internal AC power supply accepting 100-240V AC at 50-60Hz. The power supply comes with the switch, so a separate PSU is not required for the hardware order. Review the regional power-cord requirement, particularly when the deployment location differs from the UK suffix market.
CBS250-48P-4G-UK provides 370W for PoE, while CBS250-48PP-4G-UK provides 195W. Both have 48 powered Gigabit access ports, but both are discontinued. The P model accommodates higher aggregate power allocations; PP corresponds to lower-demand installed bases and has no named direct migration replacement.
CBS250-48P-4G-UK has four 1G SFP uplinks, whereas CBS250-48P-4X-UK has four 10G SFP+ uplinks. Both models are discontinued. The 4G version matches existing Gigabit upstream connections; the 4X version corresponds to 10G requirements, with C1200-48P-4X serving as its current migration replacement.
CBS250-48P-4G-UK reached end of sale on October 29, 2024, while C1200-48P-4G is its current migration replacement. Both retain 48 Gigabit powered access ports and four Gigabit SFP uplinks. The original model addresses installed-base matching; the successor is the purchasing path for a current-generation migration.
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