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CBS350-48T-4X
Cisco CBS350-48T-4X Business 350 48-Port Gigabit Switch, 4x1...
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CBS350-48T-4X provides 48 Gigabit Ethernet access ports and four fixed 10G SFP+ uplinks for small-business office networks. Its non-PoE copper connections serve externally powered computers, printers, and servers, while Layer 2+ operation combines Ethernet switching with local IP forwarding. The Rack-Mount 1U chassis belongs to the Cisco Business 350 Series and uses built-in uplink interfaces rather than removable uplink cards. Private VLAN isolation and protected-port controls separate attached devices, while guest VLAN functions distinguish guest access from business traffic. The closest powered sibling, CBS350-48P-4X, adds PoE+ with a shared 370W budget; both models are discontinued. The fixed copper-and-fiber configuration makes endpoint power requirements and upstream interface selection separate decisions when specifying an existing-system replacement or spare.
CBS350-48T-4X price for new stock is $1,538.25, a 22.2% saving from the Cisco list price of $1,977.75. CBS350-48T-4X refurb price is $971.25. CBS350-48T-4X is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CBS350-48T-4X for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
176 Gbps switching capacity provides wire-speed operation across the access and uplink interfaces, while 130.94 Mpps forwarding applies to 64-byte packets. Static routing supports 990 entries; RIP v2 exchanges routes dynamically, and PBR directs matching traffic toward selected next hops. CBS350-48T-4X carries 512 MB of DRAM, 256 MB of flash, and a 3 MB packet buffer shared across its ports. The MAC table accommodates 16000 entries for learned endpoint addresses. Cisco Business 350 managed switches support 4094 simultaneous VLANs for traffic segmentation. STP/RSTP/MSTP control bridged loops, and LACP aggregates Ethernet links. Eight hardware queues provide traffic scheduling with strict priority or weighted round-robin operation. DHCP snooping and Dynamic ARP Inspection check address bindings at the access edge. 51.01W worst-case consumption at 110V provides the maximum system figure for AC circuit planning. Single-fan cooling requires placement within the -5°C to 50°C operating range.
Order CBS350-48T-4X in new sealed or certified refurbished condition, specifying the condition, quantity, and required accessories on the PO. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed links on every port, optics bay recognition, PSU status, fan status, and clean boot; firmware is verified and configurations are wiped to factory default. ORM warranties are up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units, with 30-day returns on every condition; terms apply. Enterprise and volume POs are accepted, with Net-30 for government, RMA with advance replacement, and regional stock and RMA across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G RJ-45 / 4 x 10G SFP+ |
Stacking | Hardware stacking / 4 members |
Max Power Draw | 51.01W at 110V |
Cooling | 1 fan |
Lifecycle Status | North American end of sale October 29, 2024 |
Replacement PID | C1300-48T-4X |
When several offices need a common switch-management workflow, the embedded Cisco Business Dashboard probe removes the need for a separate probe appliance. SNMP version 3 also supports centralized monitoring. Specify the management approach, monitoring integration, and configuration staging requirements before issuing the purchase order.
When an office migration needs local inter-VLAN forwarding, size the addressing plan against the limit of 128 IP interfaces. Layer 3 interfaces can be configured on physical ports, VLAN interfaces, link aggregation groups, or loopbacks. Specify the interface inventory and required configuration scope before the purchase order.
When a spare needs validation before joining an existing deployment, traffic mirroring can copy eight source ports to one analyzer port. Dual firmware images support preparing an alternate image during staging. Specify the intended image, configuration requirements, and port-mirroring test scope before releasing the purchase order.
PoE-powered phones or access points
CBS350-48T-4X supplies no endpoint power. C1300-48P-4X provides 48 PoE+ access ports with a shared 370W budget while retaining four 10G SFP+ uplinks.
More than four hardware stack members
CBS350-48T-4X hardware stacks stop at four switches. The current migration model, C1300-48T-4X, supports eight-member stacking for requirements exceeding that limit.
Continuing vulnerability fixes for new deployments
CBS350-48T-4X vulnerability and security support ended October 29, 2025. For a new purchase requiring continuing software support, evaluate the current migration model C1300-48T-4X.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| CBS350-48T-4X |  CBS350-24T-4G |  CBS350-48FP-4G |  CBS350-24FP-4G |  SG350-8PD | |
|---|---|---|---|---|---|
| Depth | 288 mm | 240 mm | 350 mm | 345 mm | 252.5 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 | Rack-Mount 1U | Rack-Mount 1U | Desktop |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-48T-4X | CBS350-24T-4G | CBS350-48FP-4G | CBS350-24FP-4G | SG350-8PD |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 51.01W | 25.91W | 886.42W | 449.7W | 167W |
| Switching Capacity | 176 Gbps | 56 Gbps | 104 Gbps | 56 Gbps | 62 Gbps |
| Weight | 3.95 kg | 2.63 kg | 5.82 kg | 4.6 kg. | 2.5 kg |
| Width | 445 mm | 445 mm | 445 mm | 445 mm | 344.4 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 13 September 2024
High-density 48-port switching. 10G SFP+ uplinks provide unmatched bandwidth for offices.
Reviewed on the 12 April 2020
Reliable and fast. 48 ports with professional L3 management and 10G speed.
Reviewed on the 9 December 2024
Top-tier 48-port switch. 10G uplinks ensure high-speed connectivity for all users.
Reviewed on the 30 October 2022
Consistent throughput. Professional Cisco features and high-speed 10G SFP+ uplink ports.
Reviewed on the 26 February 2020
Dependable 48-port switching. 10G uplinks provide the speed our network core needs.
Reviewed on the 23 October 2022
Excellent performance for density. Stable 48-port throughput and fast 10G fiber links.
Reviewed on the 25 October 2025
High-quality managed switch. Reliable performance for large, high-speed office network environments.
Reviewed on the 8 September 2020
Stable and robust. A dependable high-speed backbone for our growing corporate network.
CBS350-48T-4X identifies a Business 350 managed switch: CBS350 names the family, 48 corresponds to 48 access ports, T identifies the non-PoE copper configuration, and 4X corresponds to four 10 Gigabit SFP+ uplinks. The access ports operate at 10/100/1000 speeds, and the chassis supports rack mounting.
CBS350-48T-4X supports an HTTP/HTTPS web interface, full or menu-based CLI, SSH or Telnet access, an RJ-45 console, SNMP, Cisco Business Dashboard, and the Cisco Business mobile app. SNMP versions 1, 2c, and 3 are supported. An embedded Dashboard probe avoids requiring a separate probe appliance.
CBS350-48T-4X is discontinued, with its North American ordering variant reaching end of sale on October 29, 2024. Software maintenance and vulnerability support ended October 29, 2025. The last date of eligible Cisco support is October 31, 2029, and C1300-48T-4X is the current migration model.
ORM Systems offers CBS350-48T-4X new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on refurbished units. Returns are available for 30 days in either condition; terms apply. Cisco's separate limited lifetime warranty is subject to eligibility and ends October 31, 2029.
CBS350-48T-4X replaced the discontinued SG350X-48-K9-AR, SG350X-48-K9-AU, SG350X-48-K9-BR, SG350X-48-K9-CN, SG350X-48-K9-EU, SG350X-48-K9-IN, SG350X-48-K9-JP, SG350X-48-K9-NA, and SG350X-48-K9-UK through matching regional ordering variants. Those predecessors reached end of sale October 30, 2021. CBS350-48T-4X is also discontinued, so an existing-system spare order should retain the applicable regional ordering identity.
CBS350-48T-4X replaced the discontinued SG550X-48-K9-AU, SG550X-48-K9-BR, SG550X-48-K9-CN, SG550X-48-K9-EU, SG550X-48-K9-IN, SG550X-48-K9-JP, SG550X-48-K9-NA, and SG550X-48-K9-UK through matching regional ordering variants. Those predecessors reached end of sale July 30, 2022. The replacement generation is also discontinued; preserve the regional identifier when specifying an existing-system replacement or spare.
The Business 350 CBS350-48T-4X configuration has four fixed 10G SFP+ uplinks rather than a removable uplink card. Supported optical choices include SFP-10G-SR for multimode fiber and SFP-10G-LR for single-mode fiber. Specify the transceiver PID and fiber type to match the remote interface and required distance.
The stackable Business 350 models, including CBS350-48T-4X, support four switches in one hardware stack managed through a single IP address. Ring and chain connections are supported, with 10G interfaces providing the interconnects. Plan the stack topology and interface allocation before specifying connections to upstream equipment.
CBS350-48T-4X provides static IPv4 routing, RIP v2 dynamic routing, IPv6 forwarding, and PBR, placing this configuration in Layer 2+. Static routing supports 990 entries, while the interface limit is 128. Size the intended routing and interface configuration separately rather than treating the static-route limit as a total routing-capacity figure.
The 48-port Business 350 CBS350-48T-4X is a Rack-Mount 1U switch measuring 445 mm wide, 288 mm deep, and 44 mm high, with a weight of 3.95 kg. The base package includes mounting hardware. Specify the mounting hardware and regional power cord when defining the order contents.
CBS350-48T-4X uses an internal universal AC power supply accepting 100-240V AC at 50-60 Hz, without redundant supply modules. Worst-case system consumption is 51.01W at 110V or 50.58W at 220V. The AC input powers the switch itself; the access ports do not supply power to connected endpoints.
CBS350-48T-4X has non-PoE access ports, while CBS350-48P-4X provides PoE+ across 48 access ports with a shared 370W budget. Both models are discontinued. The non-PoE model matches externally powered endpoints; the powered model matches endpoint-power requirements that fit its shared budget rather than unrestricted maximum power on every port.
CBS350-48T-4X carries four 10G SFP+ uplinks, whereas CBS350-48T-4G carries four 1G SFP uplinks. Both models are discontinued. The 4X configuration matches existing connections requiring 10G upstream interfaces; the 4G configuration matches existing 1G uplink requirements. Confirm the upstream speed and optical interface before specifying an existing-system spare.
C1300-48T-4X supports eight-member hardware stacks, compared with four members for CBS350-48T-4X. C1300-48T-4X is the current migration model, while CBS350-48T-4X is discontinued. The older model serves existing-system replacement requirements; the current model suits buyers establishing a new standard or needing a stack larger than four switches.
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