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CBS350-12XT-UK
Cisco CBS350-12XT-UK Business 350 10-Port 10 Gigabit Switch,...
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CBS350-12XT-UK is a managed Layer 2+ 10 Gigabit Ethernet switch with ten dedicated copper access ports and two copper/SFP+ combo connections. Each combo connection uses either copper or fiber, not both simultaneously, so the optical connections share capacity with copper connections rather than adding independent uplinks. The non-PoE, 1U Business 350 model serves small-business networks connecting self-powered servers, workstations, and other network equipment. Its fixed interfaces require no removable uplink card. Copper and optical data connections support 1G or 10G operation, allowing link speeds to follow the attached equipment. The discontinued CBS350-8XT-UK offers eight copper connections rather than twelve for smaller retained installations. A separate Gigabit out-of-band management interface keeps administrative connectivity separate from the data interfaces.
CBS350-12XT-UK price for new stock is is available on request. Get immediate quote. CBS350-12XT-UK refurb price is $1,911.27.
Request bulk order quote for CBS350-12XT-UK for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
240 Gbps switching capacity supports nonblocking traffic handling across active data interfaces. 178.56 Mpps forwarding at 64-byte packets defines the small-frame processing ceiling. Static routing, RIP v2, and PBR provide routed traffic control, with 990 static routes and 128 IP interfaces setting configuration limits. CBS350-12XT-UK carries 512 MB of DRAM, 256 MB of flash, and a dynamically shared 3 MB packet buffer for traffic handling. The Cisco Business switch supports 4094 VLANs and 16000 MAC addresses for segmented networks. STP, RSTP, and MSTP control forwarding loops, while LACP groups physical links. Browser access, the console, SSH/Telnet CLI, Cisco Business Dashboard, the mobile app, and SNMP provide local or centralized management. 64.1W maximum system consumption sets the electrical allowance for cabinet power planning. Two fans provide active cooling; this model is not fanless.
Specify CBS350-12XT-UK in new sealed or certified refurbished condition on the purchase order, including the required optics and regional power accessories. ORM Systems inspects and bench-tests refurbished units, verifies optics bay recognition and firmware, and wipes configurations to factory default. ORM warranties extend up to 3 years for new units or 1 year for certified refurbished units, with 30-day returns on every condition, terms apply; Cisco's limited lifetime warranty is subject to shipment-based terms and ends no later than May 31, 2029. For enterprise and volume orders, POs are accepted, government buyers receive Net-30, and RMA with advance replacement is available across UK, EU, US, and MEA regions.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 10 x 10G copper / 2 x 10G copper/SFP+ combo |
Stacking | Hardware stacking / 4 members |
Max Power Draw | 64.1W |
Replaces | SX350X-12-K9-UK / End of sale July 30, 2022 |
Lifecycle Status | End of sale May 30, 2024 |
Replacement PID | C1300-12XT-2X |
An installed SX350X-12-K9-UK approaching a planned hardware refresh has a direct replacement identity in this model. The older switch reached end of sale July 30, 2022. Treat the change as a replacement project rather than assuming configuration interchangeability; specify the regional PID and verify retained cabling before the PO.
A multi-site rollout using scripted configurations can stage common settings through Cisco Network Plug and Play and text-editable configuration files. CLI privilege levels 1, 7, and 15 separate operator access. Define the provisioning method, credential roles, and configuration handoff before specifying rollout quantities on the PO.
A staging bench needing packet visibility before equipment enters service can mirror eight source ports to one analyzer destination. Dual firmware images support resilient upgrade preparation. Include the analyzer connection, retained image, and intended image-validation procedure in the staging plan before ordering the lab allocation.
Endpoints requiring switch-supplied power
CBS350-12XT-UK provides data connectivity without PoE output. Phones, cameras, and access points requiring switch-supplied power need a PoE-capable design or a separately specified power arrangement.
Twelve copper links plus independent fiber uplinks
The two SFP+ connections share copper interfaces, preventing twelve copper links plus two simultaneous fiber links. Current replacement C1300-12XT-2X provides twelve copper connections with two additional SFP+ connections.
Security updates after May 2025
Vulnerability and security support ended May 30, 2025. Specify current replacement C1300-12XT-2X instead of relying on further security fixes for this discontinued model.
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| CBS350-12XT-UK |  CBS350-8P-2G |  CBS350-8T-E-2G |  CBS350-16FP-2G-UK |  CBS350-16P-2G-UK | |
|---|---|---|---|---|---|
| Depth | 203 mm | 272 mm | 185 mm | 308 mm | 297 mm |
| Ethernet Technology | 10 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 | Desktop | Desktop |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-12XT-UK | CBS350-8P-2G | CBS350-8T-E-2G | CBS350-16FP-2G-UK | CBS350-16P-2G-UK |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 64.1W | 83.17W | 12.56W | 284W | 156.4W |
| Switching Capacity | 240 Gbps | 20 Gbps | 20 Gbps | 36 Gbps | 36 Gbps |
| Weight | 2.93 kg | 2.59 kg | 1.39 kg | 2.49 kg. | 2.38 kg. |
| Width | 440 mm | 268 mm | 268 mm | 268 mm | 268 mm |
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CBS350-12XT-UK identifies a Business 350 managed switch with twelve 10 Gigabit copper connections and two shared SFP+ connections. CBS350 denotes the series; 12 denotes the connection count; XT identifies the 10G copper configuration. UK denotes the regional ordering group covering the United Kingdom and several other markets.
CBS350-12XT-UK supports HTTP/HTTPS browser management, CLI through the RJ-45 console or SSH/Telnet, Cisco Business Dashboard, Cisco Business mobile app, and SNMP versions 1, 2c, and 3. Dashboard uses an embedded probe. Select the local or centralized management method before preparing credentials and staging configurations.
Yes, CBS350-12XT-UK is discontinued: end of sale was May 30, 2024, and support ends May 31, 2029. Software maintenance and vulnerability/security support ended May 30, 2025. C1300-12XT-2X is the current replacement, so remaining hardware support must not be confused with continued security fixes.
ORM Systems offers CBS350-12XT-UK new sealed or certified refurbished, with up to a 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 hardware warranty remains subject to shipment-based terms and ends no later than May 31, 2029.
CBS350-12XT-UK replaces the discontinued SX350X-12-K9-UK, a twelve-port 10GBASE-T stackable managed switch. The older model reached end of sale July 30, 2022, and support ends July 31, 2027. The replacement relationship identifies a migration target, not automatic configuration interchangeability; confirm retained cabling and management settings before replacing installed units.
CBS350-12XT-UK provides twelve logical 10 Gigabit connections: ten dedicated copper ports and two copper/SFP+ combo ports. Each combo accepts only one active medium at a time, so both fiber connections leave ten dedicated copper connections available. The separate Gigabit out-of-band management port is not an additional switched data connection.
Yes, supported Business 350 models, including CBS350-12XT-UK, form hardware stacks of four members. Ring and chain topologies use supported 10G interfaces, with active and standby control and link aggregation across members. Reserve the required interfaces in the connection plan before specifying interconnects and remaining uplinks.
CBS350-12XT-UK supports static IPv4 routing, RIP v2, and PBR, with 990 static routes and 128 IP interfaces. Routed interfaces can reside on physical ports, link aggregations, VLAN interfaces, or loopbacks. Size the required route and interface configuration against these limits before specifying a routed deployment.
No, CBS350-12XT-UK uses a single internal AC supply rather than redundant power modules. Input accepts 100-240V AC, and maximum system consumption is 64.1W. Two fans provide cooling; plan upstream power protection and cabinet airflow rather than ordering a second supply for the chassis.
CBS350-12XT-UK provides no PoE output, whereas CBS350-12NP-4X-UK shares 375W across twelve powered ports, eight supporting 60W. Both models are discontinued. The 10G copper model serves self-powered endpoints; the PoE model addresses powered endpoints through 5G access ports but has no current migration product.
CBS350-12XT-UK has twelve 10G copper connections, whereas the discontinued CBS350-8XT-UK has eight. Both use two shared copper/SFP+ connections to accommodate fiber without additional logical ports. The twelve-connection model addresses larger retained copper-port requirements; eight connections cover a smaller endpoint count, subject to the same shared-interface planning.
C1300-12XT-2X adds two 10G SFP+ connections to twelve copper ports, while CBS350-12XT-UK shares its two SFP+ connections with copper ports. The current replacement preserves twelve copper links when both fiber links are active. The discontinued Business 350 model addresses installed-base replacement; the Catalyst model suits orders requiring independent fiber uplinks.
United States
