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CBS350-48P-4X
Cisco CBS350-48P-4X Business 350 48-Port Gigabit PoE+ Switch...
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CBS350-48P-4X is a managed Layer 2+ access switch with 48 Gigabit Ethernet PoE+ copper ports and four fixed 10G SFP+ uplinks. Its full-width 1U chassis belongs to the Cisco Business 350 Series Managed Switches and serves small-business networks connecting workstations, IP phones, wireless access points and surveillance cameras. The access connections support 10/100/1000 Mbps, while the uplink cages accept fiber optics or supported direct-attach connections rather than removable network cards. The discontinued CBS350-48FP-4X sibling carries a higher 740W endpoint-power budget. Within the Cisco Business portfolio, this configuration combines powered copper access with a separate high-speed connection to distribution, making uplink media and aggregate endpoint demand distinct items to specify on the purchase order.
CBS350-48P-4X price for new stock is $2,031.75, a 22.2% saving from the Cisco list price of $2,612.25. CBS350-48P-4X refurb price is $1,244.25. CBS350-48P-4X is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CBS350-48P-4X for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
176 Gbps switching capacity defines the fabric bandwidth available to access and uplink traffic. 130.94 Mpps forwarding sets packet-rate capacity independently of bandwidth sizing. 370W of shared PoE power must be allocated across connected powered devices; the powered-port count does not guarantee simultaneous maximum output from every port. Static routing, RIP v2 and PBR support local gateway and routing requirements. CBS350-48P-4X has 512 MB of DRAM and 256 MB of flash, while a dynamically shared 3 MB packet buffer accommodates traffic bursts. STP/RSTP/MSTP control switching loops, and LACP supports eight aggregation groups with eight active ports per group. A 16000-entry MAC table provides endpoint-learning capacity. Hardware stacking manages four members as one system through 10G interconnects, with ring and chain arrangements available. The single internal AC supply provides no redundant internal power modules. 471.9W worst-case consumption with PoE sets the electrical load to include when sizing cabinet power.
ORM Systems offers CBS350-48P-4X new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units; both conditions have 30-day returns, with terms applying. Certified refurbished units are inspected and bench-tested for power-on and POST, clean boot, rated-speed links on every port, PoE output under load on every powered port and optics bay recognition, with firmware verified and configuration wiped to factory default. Specify the required condition, quantities and regional ordering variant on the purchase order; Cisco's original limited lifetime hardware warranty remains subject to eligibility and ends no later than October 31, 2029. Enterprise and volume orders support PO acceptance, government Net-30, RMA with advance replacement and regional stock/RMA across the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G PoE+ / 4 x 10G SFP+ |
PoE Budget | 370W shared |
Stacking | Hardware stacking / 4 members |
Cooling | 1 fan |
Lifecycle Status | End of sale October 29, 2024 |
Replacement PID | C1300-48P-4X |
When a branch separates departmental or device traffic across routed interfaces, the switch supports 128 IP interfaces on physical ports, link aggregations, VLAN interfaces or loopbacks. Define the gateway layout and address plan before ordering, then specify the required interface allocation on the purchase order.
When several sites need a common administration baseline, text-editable configuration files can be prepared for repeated deployments. CLI privilege levels 1, 7 and 15 provide distinct operator access choices. Specify the approved configuration template, administrator roles and site quantities before issuing the purchase order.
When hardware must pass a staging bench before release to a site, the front-panel USB Type-A slot supports file and image management, and an RJ-45 console provides local access. Specify the staging configuration and console-access requirements with the order before arranging the handoff.
Multigigabit speeds on copper access ports
CBS350-48P-4X limits its copper access ports to 1GbE. The 10G interfaces are SFP+ uplinks, not multigigabit RJ-45 access ports for higher-speed endpoints.
Fanless operation in occupied rooms
CBS350-48P-4X uses one fan and produces 37.3 dBA at 25°C. A deployment requiring a fanless chassis excludes this model from the purchase specification.
Continuing security fixes from Cisco
CBS350-48P-4X passed its final vulnerability-support date on October 29, 2025. C1300-48P-4X is the current replacement with the same access-port density and uplink class.
More than four hardware stack members
CBS350-48P-4X hardware stacks support four members. A design requiring a larger single hardware stack must use a different switching family rather than additional members.
Mon–Fri: [09:00-16:00]
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| CBS350-48P-4X |  CBS350-24P-4G |  CBS350-24FP-4X |  SF350-24 |  CBS350-24XT | |
|---|---|---|---|---|---|
| Depth | 350 mm | 299 mm | 345 mm | 202 mm | 350 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Fast Ethernet | 10 Gigabit Ethernet |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-48P-4X | CBS350-24P-4G | CBS350-24FP-4X | SF350-24 | CBS350-24XT |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 471.9W | 239.7W | 451.8W | 10.9W | 124.5W |
| Switching Capacity | 176 Gbps | 56 Gbps | 128 Gbps | 12.8 Gbps | 480 Gbps |
| Weight | 5.43 kg | 3.53 kg | 4.6 kg. | 2.72 kg | 5.1 kg. |
| Width | 445 mm | 445 mm | 445 mm | 440 mm | 440 mm |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 27 December 2025
Exceptional 48-port PoE+. 10G SFP+ uplinks deliver incredible throughput for data.
Reviewed on the 12 December 2017
Reliable and smart. 48 ports of PoE+ with fast 10G uplinks.
Reviewed on the 5 September 2026
Top-tier managed PoE. Professional features and 10G uplinks for busy enterprise sites.
Reviewed on the 3 April 2017
Consistent performance. Handles numerous endpoints while providing a fast 10G network core.
Reviewed on the 2 October 2025
Robust and dependable. High-quality 48-port build with 10G SFP+ uplink ports. Great.
Reviewed on the 5 April 2021
Stable PoE+ output. Great throughput and very easy to manage 10G uplinks.
Reviewed on the 2 April 2023
Excellent 48-port solution. Reliable power and fast 10G L3 switching combined perfectly.
Reviewed on the 14 April 2026
Professional grade networking. PoE+ is steady and the 10G uplinks are fast.
CBS350-48P-4X identifies a Cisco Business 350 managed switch: 48 means 48 Gigabit copper access ports, P identifies PoE+, and 4X identifies four 10G SFP+ uplinks. The model has a shared 370W PoE budget. CBS350-48P-4X-NA is the regional ordering variant used for the United States.
Cisco Business 350 Series Managed Switches support a browser-based web UI, CLI over SSH or Telnet, the RJ-45 console, Cisco Business Dashboard, the Cisco Business mobile app and SNMP. The embedded Dashboard probe runs on the switch, while local interfaces remain available for direct administration.
Yes, CBS350-48P-4X reached end of sale on October 29, 2024, and is discontinued. Software maintenance and vulnerability support ended October 29, 2025; the last date of support is October 31, 2029. C1300-48P-4X is the current replacement, retaining 48 Gigabit access ports and four 10G SFP+ uplinks.
ORM Systems offers CBS350-48P-4X new sealed with up to a 3-year extended warranty or certified refurbished with up to 1 year. Both conditions include 30-day returns; terms apply. Cisco's original limited lifetime hardware warranty is separate, subject to eligibility, and cannot extend beyond October 31, 2029.
CBS350-48P-4X replaces SG350X-48P-K9-NA and SG550X-48P-K9-NA for United States orders through CBS350-48P-4X-NA. The older models reached end of sale on October 30, 2021, and July 30, 2022, respectively. CBS350-48P-4X is itself discontinued, so a new-generation migration should specify its current replacement, C1300-48P-4X.
CBS350-48P-4X provides a shared 370W PoE budget across 48 PoE+ access ports. The aggregate allowance, rather than the number of powered sockets, sets the deployment's power limit. Add the expected draw of phones, cameras and access points before specifying the endpoint allocation for the order.
SFP-10G-SR and SFP-10G-LR fit the four fixed 10G SFP+ uplinks on CBS350-48P-4X. SFP-10G-SR uses multimode fiber, while SFP-10G-LR uses single-mode fiber. SFP-H10GB-CU1M provides a supported 1 m copper direct-attach connection. Specify the required media separately and match both ends of each link before ordering.
Four CBS350-48P-4X switches can form one hardware stack managed as a single system. Stack interconnects use 10G interfaces, and ring or chain arrangements are supported. Active and standby stack control and link aggregation across stack members are available; specify the interconnect media and topology with the switches.
Yes, CBS350-48P-4X supports inter-VLAN routing through static routes, RIP v2 and PBR. The switch supports 990 static routes and 128 IP interfaces, including VLAN and physical-port interfaces. Size the gateway and route plan against those limits before assigning the switch a routed-access role in the network.
No, CBS350-48P-4X uses a single internal AC power supply rather than redundant internal power modules. Input is 100-240V AC at 50-60 Hz. The worst-case draw reaches 471.9W with PoE, so cabinet power planning must include the switch's full operating load rather than only its endpoint-power allowance.
CBS350-48P-4X has a 370W PoE budget, while CBS350-48FP-4X has 740W; both models are discontinued. The difference is the shared endpoint-power allowance, not a promise of maximum power on every port. For existing-installation sparing, the P model matches lower-power deployments, while the FP model matches higher-power allocations.
CBS350-48P-4X carries four 10G SFP+ uplinks, whereas CBS350-48P-4G carries four 1G SFP uplinks; both models are discontinued. The 4X model matches existing networks with 10G distribution connections. The 4G model matches installations whose uplinks remain at 1G and whose spare must preserve that connection class.
CBS350-48P-4X is discontinued, while C1300-48P-4X is its current Catalyst 1300 replacement. The migration retains 48 Gigabit powered access ports and four 10G SFP+ uplinks rather than changing the port arrangement. Existing CBS350 installations may require matching spares; buyers specifying the current generation should select C1300-48P-4X.
United States
