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CBS350-12XS
Cisco CBS350-12XS Business 350 12-Port 10 Gigabit Switch, 2x...
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CBS350-12XS is a managed, non-PoE 10 Gigabit Ethernet switch for small-business fiber aggregation, with 10 dedicated SFP+ connections and two fixed copper/SFP+ combo uplinks. Each shared uplink accepts either copper or fiber, so selecting copper occupies the corresponding fiber position. The full-width 1U chassis places the Cisco Business 350 Series in the equipment rack rather than on a desktop. Layer 2+ functionality supports communication between locally connected subnets as well as VLAN-based traffic separation. A dedicated Gigabit management connection provides an administrative attachment distinct from the switching connections. The discontinued CBS350-24XS carries 24 SFP+ connections for higher-density fiber configurations.
CBS350-12XS price for new stock is is available on request. Get immediate quote. CBS350-12XS refurb price is $1,449.00.
Request bulk order quote for CBS350-12XS for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
240 Gbps switching capacity establishes the aggregate switching limit, while 178.56 Mpps forwarding defines packet-processing capacity. Static routing and RIP v2 support configured routes and dynamic route updates; PBR directs traffic to selected next hops using access control lists. The static routing limit accommodates 990 routes. 25.3W maximum system consumption provides the electrical-load figure for power planning without an endpoint-power allocation. Management tasks use 512 MB DRAM, while 256 MB flash provides local software storage. CBS350-12XS shares a 3 MB packet buffer across its ports rather than allocating that amount to each connection. The Cisco Business feature set includes STP/RSTP/MSTP for loop control and LACP for grouping physical links. Hardware stacking joins four members over 10G interconnects, with ring and chain arrangements supported. Four fans provide active cooling, and the 0°C to 50°C operating range bounds installation conditions. Support for 4094 simultaneous VLANs provides a separate segmentation limit from routing capacity.
ORM Systems offers CBS350-12XS 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; returns are available for 30 days on every condition, terms apply. Refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, a clean boot, optics bay recognition, PSU status and fan status, with firmware verified and configuration wiped to factory default. Confirm the condition, regional ordering variant and quantity before submitting the PO; Cisco's separate limited lifetime hardware warranty is bounded by May 31, 2029. Enterprise and volume purchasing supports PO acceptance, Net-30 for government and RMA with advance replacement, with regional stock and RMA in the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 10 x 10G SFP+ / 2 x 10G copper/SFP+ combo |
Stacking | Hardware stacking / four members |
Max Power Draw | 25.3W |
Replaces | SX550X-12F-K9-EU / SX550X-12F-K9-NA / SX550X-12F-K9-UK; end-of-sale July 30, 2022. |
Lifecycle Status | End-of-sale May 30, 2024. |
Replacement PID | C1300-12XS. |
CBS350-12XS sits at the top of a compact server rack and terminates 10G SFP+ links from virtualization hosts, NAS systems, and backup appliances. Engineers place storage, hypervisor, and management VLANs on the dedicated SFP+ ports, then reserve the 2 copper/SFP+ combo ports for a firewall, router, or copper 10G handoff. LACP groups carry paired server links where resilience is required. The rack gains a managed 10G access point with predictable fibre density and isolated management reachability, keeping troubleshooting scoped to that rack.
CBS350-12XS operates between access switches and the distribution layer when several downstream closets present 10G SFP+ uplinks. Network teams configure tagged trunks, routed interfaces, or LACP bundles across the 10 dedicated SFP+ ports, then use the combo ports for local copper or optical distribution links. The 240 Gbps switching fabric keeps uplink aggregation nonblocking for this 12-port design. The network gains a compact aggregation tier that reduces 10G uplink sprawl at the distribution switch while preserving clear distribution port assignments.
CBS350-12XS joins a Cisco Business 350 stack when operations teams need more 10G SFP+ ports under one management address. Administrators align firmware, stack roles, VLAN databases, QoS policies, and monitoring profiles across compatible stack members, then manage the added fibre ports through Cisco Business Dashboard, CLI, or SNMP. The out-of-band GE management port keeps administrative access separate from production uplinks. The site gains expanded 10G capacity without creating another standalone management island during refresh work, closet growth, and maintenance windows.
When a small-business network needs local communication between separated workgroups, support for 128 IP interfaces provides a concrete gateway-planning limit. Map the existing subnets, gateway locations and permitted communication paths before selecting the configuration, then attach the intended interface plan and routing requirements to the purchase specification.
When several sites need the same staged configuration, text-editable configuration files and secure file transfer support a common preparation process. The embedded Cisco Business Dashboard probe removes the requirement for a separate probe appliance at each location. Specify configuration ownership, the management workflow and staging requirements on the PO.
When a lab or staging environment needs packet capture from several connections, port mirroring supports eight source ports directed to one destination port. Reserve the analyzer connection separately from the monitored links, identify the traffic sources and specify the required capture arrangement before ordering the lab equipment.
Powered endpoints over copper links
CBS350-12XS provides data-only copper connections and cannot supply PoE to phones, cameras or access points. Endpoint power must come from separate equipment.
Security fixes for new deployments
Software maintenance and security remedies ended May 30, 2025. Current replacement C1300-12XS has a narrower 268 mm chassis, so mounting arrangements differ.
More than twelve switching connections
CBS350-12XS provides twelve usable switching connections because its copper options share fiber positions. Current higher-density alternative C1300-24XS provides twenty-four switching connections.
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| CBS350-12XS |  CBS350-24MGP-4X |  SG350-28SFP |  CBS350-16P-2G |  CBS350-24NGP-4X | |
|---|---|---|---|---|---|
| Depth | 257 mm | 257 mm | 203 mm | 297 mm | 350 mm |
| Ethernet Technology | 10 Gigabit Ethernet | Multi-Gigabit (2.5G/5G) | 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 | Desktop | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-12XS | CBS350-24MGP-4X | SG350-28SFP | CBS350-16P-2G | CBS350-24NGP-4X |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 25.3W | 476.6W | 34.3W | 156.4W | 488.9W |
| Switching Capacity | 240 Gbps | 140 Gbps | 56 Gbps | 36 Gbps | 192 Gbps |
| Weight | 3.42 kg | 3.99 kg. | 2.7 kg | 2.38 kg | 5.3 kg |
| Width | 440 mm | 440 mm | 440 mm | 268 mm | 440 mm |
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CBS350-12XS identifies the Cisco Business 350 family, with 12 switching connections and an XS configuration centered on 10 Gigabit SFP+ interfaces. Two positions also provide shared copper connections. For US orders, CBS350-12XS-NA is the regional ordering variant; the NA suffix selects the North American region.
Cisco Business 350 switches support the HTTP/HTTPS web interface, CLI over SSH or Telnet, the RJ-45 console, Cisco Business Dashboard, the Cisco Business mobile app and SNMP. Full and menu-based CLI modes are available. Select the management method before preparing administrative credentials and configuration procedures.
CBS350-12XS ended sale on May 30, 2024, and reaches its last date of Cisco support on May 31, 2029. Software maintenance and vulnerability support ended May 30, 2025. C1300-12XS is the current replacement, so an existing-hardware purchase and a new deployment have different lifecycle considerations.
ORM Systems offers CBS350-12XS new sealed with up to a 3-year extended warranty or certified refurbished with up to 1 year. Both conditions have 30-day returns, terms apply. Cisco's separate limited lifetime hardware warranty is bounded by May 31, 2029. Refurbished units are inspected, bench-tested, firmware verified and wiped to factory default.
CBS350-12XS provides twelve usable 10 Gigabit switching connections: ten dedicated SFP+ positions and two copper/SFP+ combo positions. Each combo pair uses either copper or fiber, not both simultaneously. The separate Gigabit management connection does not add another switching position. Plan endpoint and network connections against those twelve usable positions.
CBS350-12XS supports SFP-10G-SR for multimode fiber and SFP-10G-LR for single-mode fiber. Direct-attach choices include SFP-H10GB-CU1M at 1 m, SFP-H10GB-CU3M at 3 m and SFP-H10GB-CU5M at 5 m. Specify each connection's medium, distance and remote interface before selecting its cable or transceiver.
Yes, CBS350-12XS supports hardware stacking with four members using 10G fiber interconnects. Ring and chain arrangements are supported, with active and standby stack control. Link aggregation can extend across stack members. Reserve the required interconnect positions when planning the remaining endpoint and network connections.
CBS350-12XS supports static IPv4 routing, RIP v2 and PBR, with limits of 990 static routes and 128 IP interfaces. RIP v2 supplies dynamic routing updates, while PBR selects next hops using access control lists. Check both the required routing behavior and interface plan before replacing an existing gateway.
Yes, the Cisco Business 350-12XS uses a 1U rack-mount chassis measuring 440 mm wide, 257 mm deep and 44 mm high. The unit weighs 3.42 kg, and a mounting kit is included in the standard package. Allow for power cabling and ventilation when checking the equipment rack before ordering.
CBS350-12XS replaces SX550X-12F-K9-EU, SX550X-12F-K9-NA and SX550X-12F-K9-UK through corresponding regional versions. Those predecessors ended sale July 30, 2022, and their Cisco support ends July 31, 2027. CBS350-12XS is also discontinued; new deployments should follow the migration chain to current C1300-12XS rather than stop at the intermediate generation.
CBS350-12NP-4X offers a 375W PoE budget, while CBS350-12XS does not supply PoE. Both models are discontinued, and the powered model has no current direct successor. Powered-endpoint buyers must account for that missing migration path; CBS350-12XS addresses non-powered fiber connections, with current C1300-12XS available as its replacement.
CBS350-24XS offers 24 SFP+ positions compared with twelve on CBS350-12XS, providing greater fiber connection density. Both models are discontinued. Buyers maintaining existing spares must match the required connection count; new purchases should follow the migration chain to current C1300-24XS or C1300-12XS respectively.
C1300-12XS is 268 mm wide, whereas CBS350-12XS uses a 440 mm-wide chassis. C1300-12XS is the current successor to the discontinued CBS350-12XS, not an identical mechanical replacement. Buyers retaining an existing rack layout must check mounting hardware; new purchases can use the successor after allowing for its narrower body.
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