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CBS350-48P-4G-UK
Cisco CBS350-48P-4G-UK Business 350 48-Port Gigabit PoE+ Swi...
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CBS350-48P-4G-UK is a managed Layer 2+ access switch with 48 Gigabit Ethernet PoE+ ports and four fixed 1G SFP uplinks in a 1U rack-mount chassis. The Cisco Business 350 Series connects office workstations alongside powered IP phones, wireless access points and surveillance endpoints. Dedicated fiber uplinks leave the copper interfaces available for those endpoints, while the fixed architecture provides no removable uplink-card bay. The discontinued CBS350-48FP-4G-UK sibling allocates 740W to endpoint power for larger powered-device inventories. This 48-port Gigabit PoE+ access switch combines powered copper access with separate optical connections in a defined, small-business configuration rather than a chassis requiring separately selected network modules.
CBS350-48P-4G-UK price is is available on request. Get immediate quote.
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104 Gbps switching capacity supports nonblocking traffic across the access and uplink interfaces. 77.38 Mpps forwarding handles packet traffic at the published 64-byte packet size. 370W of shared PoE power must be allocated across the connected powered endpoints rather than treated as an unrestricted allowance for every port. Static IPv4 routing and RIP v2 handle local routed traffic; PBR selects next hops using IPv4 or IPv6 access-control matches. Packet storage uses a 3 MB buffer shared dynamically across all ports. The hardware includes 512 MB DRAM and 256 MB flash for runtime operation and local software storage. STP/RSTP/MSTP provide loop control, while LACP supplies link aggregation. CBS350-48P-4G-UK supports 16000 MAC entries and 4094 simultaneous VLANs for address learning and network segmentation. Administrators can use browser configuration, console or remote CLI, SNMP and Cisco Business Dashboard. Hardware stacking is not available on this configuration.
Choose CBS350-48P-4G-UK in new sealed or certified refurbished condition, and specify the required quantity and condition on the order. Certified refurbished units are inspected and bench-tested: every port links at rated speed, PoE output is verified under load on every powered port, optics bay recognition is checked, firmware is verified, and configuration is wiped to factory default. ORM's new-unit warranty is up to 3-year extended and certified refurbished coverage is up to 1 year; returns are 30 days on every condition, terms apply, while Cisco's Limited Lifetime warranty and applicable service end October 31, 2029. Submit an enterprise or volume PO with Net-30 for government orders, RMA with advance replacement, and regional stock/RMA coverage in the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G PoE+, 4 x 1G SFP |
PoE Budget | 370W shared |
Cooling | 1 fan |
Replaces | SG350-52P-K9-UK: October 30, 2021 / SF350-48P-K9-UK: January 29, 2023 |
Lifecycle Status | End of sale October 29, 2024 |
Replacement PID | C1300-48P-4G |
When a branch is moving inter-VLAN addressing onto its access switch, the 128 IP-interface limit becomes a sizing checkpoint. Count the planned physical, VLAN, link-aggregation and loopback interfaces together rather than considering each independently. Specify the interface inventory and addressing plan before the purchase order.
When several offices need matching configurations, text-editable configuration files can be downloaded to another switch instead of rebuilding each setup manually. CLI privilege levels 1, 7 and 15 allow the administration model to be specified alongside the configuration template. Include the approved configuration and access-role requirements with the volume order.
When a spare must be prepared before a maintenance window, two software images and a front-panel USB Type-A slot support local image handling. Keep image selection separate from the production configuration during staging, then define the boot and configuration checks that must be completed before accepting the replacement order.
10G fiber uplinks to distribution
CBS350-48P-4G-UK provides 1G SFP uplinks rather than 10G SFP+. C1300-48P-4X retains 48 Gigabit PoE access ports and supplies four 10G SFP+ uplinks.
Hardware stacking across multiple switches
CBS350-48P-4G-UK does not support hardware stacking. Centralized administration through Cisco Business Dashboard does not combine independent switches into a shared forwarding system or hardware stack.
Fanless operation in occupied rooms
CBS350-48P-4G-UK uses one fan and produces 37.3 dBA at 25°C. A requirement for passive cooling excludes this configuration, regardless of available rack space.
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| CBS350-48P-4G-UK |  CBS350-48FP-4X-UK |  CBS350-8T-E-2G-EU |  CBS350-8T-E-2G-NA |  CBS350-24NGP-4X-UK | |
|---|---|---|---|---|---|
| Depth | 350 mm | 350 mm | 185 mm | 185 mm | 350 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Multi-Gigabit (2.5G/5G) |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Desktop | Desktop | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-48P-4G-UK | CBS350-48FP-4X-UK | CBS350-8T-E-2G-EU | CBS350-8T-E-2G-NA | CBS350-24NGP-4X-UK |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 451.95W | 889.35W | 12.56W | 12.56W | 488.9W |
| Switching Capacity | 104 Gbps | 176 Gbps | 20 Gbps | 20 Gbps | 192 Gbps |
| Weight | 5.43 kg. | 5.82 kg | 1.39 kg. | 1.39 kg | 5.3 kg |
| Width | 445 mm | 445 mm | 268 mm | 268 mm | 440 mm |
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CBS350-48P-4G-UK identifies a Cisco Business 350 managed switch: 48 denotes copper access ports, P denotes PoE+, 4G denotes four Gigabit SFP uplinks, and UK denotes regional ordering. The UK suffix covers the United Kingdom, Saudi Arabia, Qatar, Kuwait, Singapore, Hong Kong and Malaysia. The copper ports support 10/100/1000 connections.
Cisco Business 350 switches support a web UI over HTTP/HTTPS, CLI through the RJ-45 console, SSH or Telnet, Cisco Business Dashboard, the Cisco Business mobile app, and SNMP. The embedded dashboard probe runs on the switch, while full and menu-based CLI modes support scripted administration and different administrator privilege levels.
Yes, CBS350-48P-4G-UK reached end of sale on October 29, 2024; software maintenance and vulnerability/security support ended October 29, 2025. The last date of support is October 31, 2029. C1300-48P-4G is the replacement. Remaining hardware service must not be confused with continued software fixes or security updates.
ORM Systems offers CBS350-48P-4G-UK new sealed or certified refurbished, with up to 3-year extended warranty for new units and up to 1 year for refurbished units. Returns are 30 days on every condition; terms apply. Cisco's Limited Lifetime warranty and applicable service end October 31, 2029.
CBS350-48P-4G-UK replaces SG350-52P-K9-UK and SF350-48P-K9-UK. SG350-52P-K9-UK reached end of sale on October 30, 2021, while SF350-48P-K9-UK reached end of sale on January 29, 2023. Both predecessors are discontinued, and CBS350-48P-4G-UK is also discontinued; C1300-48P-4G is the forward migration option for a replacement-generation purchase.
370W is the shared PoE budget for CBS350-48P-4G-UK. All 48 copper access ports support PoE+, but connected endpoints must share that total allocation. Port availability does not guarantee unrestricted simultaneous power delivery. Record each endpoint's power requirement and aggregate the planned loads before specifying the powered-device inventory.
Cisco Business 350 Gigabit SFP uplinks support MGBSX1 for multimode fiber and MGBLX1 for single-mode fiber. MGBSX1 supports links to 500 m, while MGBLX1 supports links to 10 km. Select matching optics for both link ends; changing transceivers does not turn the fixed Gigabit uplinks into 10G ports.
No, CBS350-48P-4G-UK does not support hardware stacking. Hardware stacking within the Cisco Business 350 family is restricted to selected models with faster interfaces. Cisco Business Dashboard can administer independent switches, but centralized administration does not provide the shared forwarding and control behavior of a hardware stack.
Cisco Business 350 switches support static IPv4 routing, RIP v2 and PBR, alongside IPv6 routing. Static IPv4 routing supports 990 static routes, and the interface limit is 128 IP interfaces. PBR directs traffic to different next hops using IPv4 or IPv6 access-control matches rather than requiring every flow to follow the same route selection.
CBS350-48P-4G-UK uses an internal AC supply accepting 100-240V AC at 50-60 Hz, without redundant supply operation. Maximum consumption with PoE is 451.95W at 110V. Include that draw in rack-power planning and confirm the regional cord requirements before placing the purchase order for the complete installation.
CBS350-48FP-4G-UK provides a 740W PoE budget, whereas CBS350-48P-4G-UK provides 370W. Both models are discontinued, so this comparison concerns existing-family requirements rather than a current-generation recommendation. The FP variant addresses larger aggregate endpoint-power allocations; the P variant addresses installations whose powered-device inventory fits the smaller shared budget.
CBS350-48P-4X-UK carries four 10G SFP+ uplinks, while CBS350-48P-4G-UK carries four 1G SFP uplinks. Both CBS350 variants are discontinued. Existing installations retaining Gigabit optical connections match the 4G configuration; existing installations requiring 10G uplink connections match the 4X configuration. The optical uplink requirement separates these two versions.
C1300-48P-4G is the replacement for the discontinued CBS350-48P-4G-UK, whose end-of-sale date was October 29, 2024. Both configurations specify 48 Gigabit PoE access ports and four Gigabit SFP uplinks. Retaining an existing CBS350 installation points toward the older model; purchasing the replacement generation points toward C1300-48P-4G.
CBS350-48P-4G-UK needs one 1U rack position and measures 44 mm high, 445 mm wide and 350 mm deep. Weight is 5.43 kg, and operating temperature is -5°C to 50°C. Account for the fan-cooled enclosure when checking rack space, cabinet loading and site conditions before ordering the installation hardware.
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