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CBS350-12XT
Cisco CBS350-12XT Business 350 10-Port 10 Gigabit Switch, 2x...
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CBS350-12XT is an end-of-sale, managed Layer 2+ switch for small-business networks requiring 10 Gigabit copper connections. Ten dedicated RJ-45 network ports sit alongside two fixed copper/SFP+ combo connections; using either fiber connection disables its corresponding copper connection. The non-PoE configuration connects independently powered servers, workstations, and network equipment rather than supplying endpoint power. Cisco Business 350 Series managed switches support local administration and centralized management, while this rack-mount model includes a separate Gigabit out-of-band management connection. The discontinued CBS350-12NP-4X differs by offering 5G PoE+ access with a shared 375W endpoint budget. Copper and SFP+ connections support 1G operation as well, allowing existing Gigabit links to remain in service during a staged network change.
CBS350-12XT price for new stock is $1,750.35, a 50% saving from the Cisco list price of $3,500.70. CBS350-12XT refurb price is $941.85. CBS350-12XT is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for CBS350-12XT for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
240 Gbps switching capacity supports nonblocking forwarding, while 178.56 Mpps at 64-byte packet sizes defines packet-processing throughput. Static routing and RIP v2 handle intersubnet traffic; PBR selects next hops using IPv4 or IPv6 access-control rules. Routing supports 990 static routes and 128 IP interfaces, so the intended route set and gateway count must fit those limits. CBS350-12XT uses 512 MB DRAM and 256 MB flash for software execution and image storage, with a dynamically shared 3 MB packet buffer for traffic. STP/RSTP/MSTP protects switched paths, and LACP supports eight groups containing eight active links each. Cisco Business switching accommodates 4094 simultaneous VLANs and 16000 learned MAC addresses for segmentation and forwarding. Two fans provide active cooling across a 0°C to 50°C operating range. 64.1W maximum consumption provides the single-switch allowance when sizing AC power and cabinet thermal loads.
Order CBS350-12XT in new sealed or certified refurbished condition, and confirm the regional order code and included mounting hardware before releasing the PO. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at its rated speed, optics bay recognition, PSU and fan status, and clean boot; firmware is verified and the configuration wiped to factory default. ORM Systems provides up to a 3-year extended warranty for new units, up to 1 year for certified refurbished units, and 30-day returns on every condition, with terms applying; eligible Cisco limited lifetime coverage ends May 31, 2029. Specify quantities and accessories together for enterprise or volume orders; POs are accepted, government customers receive Net-30 terms, and RMA includes advance replacement.
| 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 |
Cooling | 2 fans |
Lifecycle Status | End of sale May 30, 2024 |
Replacement PID | C1300-12XT-2X. |
CBS350-12XT sits at the server access edge for racks that use 10GBASE-T NICs, storage appliances, or virtualization hosts. Engineers land up to 10 fixed 10G copper links from local equipment, reserve the 2 copper/SFP+ combo positions for upstream handoff, and manage the switch through the dedicated GE out-of-band port. VLAN interfaces, LACP groups, and static routes place local server traffic close to the rack. The 240 Gbps fabric keeps these rack links inside a nonblocking switching domain. The network gains compact 10G server connectivity without consuming higher-density distribution ports.
CBS350-12XT operates as a compact 10G access-to-distribution handoff where copper endpoints or downstream switches need high-speed aggregation. Network teams terminate 10G RJ-45 runs on the fixed copper ports, select copper or SFP+ media on the 2 combo positions, and carry trunks or routed links northbound. The dedicated GE management interface keeps operations traffic separate from data forwarding. The switch applies VLANs, QoS, 802.1X controls, DHCP snooping, and IPv4 or IPv6 routing at the handoff point. The result is controlled 10G edge growth with clear uplink media selection.
Multiple Cisco Business 350 10G switches form a stacked aggregation block when a site needs more 10G copper ports under one operating view. CBS350-12XT contributes 10 fixed 10G copper ports and 2 copper/SFP+ combo ports per member, while the stack presents one management system with shared VLANs, cross-stack LAGs, QoS, and port mirroring. Hardware stacking places up to 4 units under one IP address for administration. Engineers standardize firmware, stack roles, link aggregation, and upstream fiber before adding members. The network gains higher 10G density with simpler operations and failover behavior.
An installed SX350X-12-K9-NA scheduled for hardware replacement can migrate to CBS350-12XT-NA while retaining a twelve-connection 10G copper configuration. The older switch reached end of sale July 30, 2022. For like-for-like replacement stock, match the regional order code and intended reuse of existing links before issuing the PO.
An expansion that keeps several switches under one configuration can use ring or chain hardware stacking, including link aggregation across members. For CBS350-12XT, reserve the selected 10G interfaces for stack interconnects rather than endpoint links. Specify the topology, member roles, and interconnect media before finalizing the order.
A staging team preparing repeatable configurations can edit configuration files before loading them onto the next switch and use SCP for protected file transfers. CLI privilege levels 1, 7, and 15 separate access during preparation. Include configuration ownership, transfer access, and acceptance checks in the purchasing handoff.
PoE power for connected endpoints
CBS350-12XT supplies data connections without PoE output, so attached access points, phones, or other powered devices require their own separate power source.
Every copper connection plus fiber uplinks
CBS350-12XT shares its SFP+ connections with two copper ports, preventing simultaneous use of every copper connector and both fiber connectors. C1300-12XT-2X provides separate SFP+ uplinks.
Ongoing security fixes from Cisco
CBS350-12XT software maintenance and vulnerability/security support ended May 30, 2025. C1300-12XT-2X is the current replacement for deployments requiring a supported successor.
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| CBS350-12XT |  CBS350-8MGP-2X |  SG350-8PD |  CBS350-48P-4X |  CBS350-12NP-4X | |
|---|---|---|---|---|---|
| Depth | 203 mm | 252 mm | 252.5 mm | 350 mm | 257 mm |
| Ethernet Technology | 10 Gigabit Ethernet | Multi-Gigabit (2.5G/5G) | Multi-Gigabit (2.5G/5G) | Gigabit Ethernet | Multi-Gigabit (2.5G/5G) |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Desktop | Desktop | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-12XT | CBS350-8MGP-2X | SG350-8PD | CBS350-48P-4X | CBS350-12NP-4X |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 64.1W | 167W | 167W | 471.9W | 494.5W |
| Switching Capacity | 240 Gbps | 62 Gbps | 62 Gbps | 176 Gbps | 200 Gbps |
| Weight | 2.93 kg. | 2.5 kg | 2.5 kg | 5.43 kg | 4.24 kg |
| Width | 440 mm | 344 mm | 344.4 mm | 445 mm | 440 mm |
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CBS350 identifies the Cisco Business 350 managed-switch family, 12 denotes twelve network connections, and XT identifies the 10 Gigabit copper configuration. CBS350-12XT includes two SFP+ connections shared with copper ports. Its separate Gigabit management connection does not add another network-facing connection to that twelve-port configuration.
CBS350-12XT has ten dedicated 10G copper ports and two 10G copper/SFP+ combo connections, giving twelve simultaneously usable network connections. Each combo allows either copper or fiber operation, not both together. Installing an optic therefore replaces its corresponding copper connection rather than adding a thirteenth or fourteenth network connection.
CBS350-12XT supports a web UI over HTTP/HTTPS, CLI through the RJ-45 console or SSH/Telnet, SNMP, Cisco Business Dashboard, and the Cisco Business mobile app. A dedicated Gigabit out-of-band management port provides a separate management connection; the embedded Dashboard probe avoids a separate on-site probe appliance.
Yes, Cisco Business 350 hardware stacking supports four members, including CBS350-12XT, using 10G interconnects and ring or chain topology. Stack ports must be configured for stacking, with matching interconnect speed and negotiation capabilities. Legacy Sx350, Sx550, and enterprise switches cannot join the same hardware stack.
Static routing, RIP v2, and PBR are available on CBS350-12XT, with 990 static routes and 128 IP interfaces. Layer 3 interfaces can be assigned to physical ports, link-aggregation groups, VLANs, or loopbacks. Plan the required gateway count and route set within those limits before selecting the switch.
No separate license or subscription is required for Cisco Business 350 switch functions; the hardware purchase includes all features. CBS350-12XT has no separately selected network-license tier or minimum software subscription term. New and ORM certified refurbished orders therefore do not need an added feature-subscription line item.
CBS350-12XT replaces the discontinued SX350X-12-K9-AU, SX350X-12-K9-BR, SX350X-12-K9-EU, SX350X-12-K9-IN, SX350X-12-K9-JP, SX350X-12-K9-NA, and SX350X-12-K9-UK variants. Those older switches reached end of sale July 30, 2022. Match the regional variant when planning replacement stock, and distinguish this hardware replacement relationship from stack compatibility with the older family.
Yes, CBS350-12XT reached end of sale May 30, 2024, and its last date of support is May 31, 2029. Software maintenance and vulnerability/security support ended May 30, 2025. C1300-12XT-2X is the current replacement; remaining hardware-support eligibility does not restore ongoing software or security maintenance.
ORM Systems offers new sealed CBS350-12XT units with up to a 3-year extended warranty and certified refurbished units with up to 1 year. Both conditions have 30-day returns; terms apply. Cisco's separate limited lifetime hardware warranty provides next-business-day replacement where available; all Cisco support ends May 31, 2029.
CBS350-12NP-4X supplies a shared 375W PoE budget across twelve 5G access ports, while CBS350-12XT supplies non-PoE 10G copper connections. CBS350-12NP-4X is also discontinued, with no migration product available. The former served powered-endpoint installations; CBS350-12XT serves independently powered 10G devices rather than replacing a PoE power source.
CBS350-24XT has twenty-four 10G copper connections with four shared SFP+ connections, while CBS350-12XT has twelve copper connections with two shared SFP+ connections. Both are discontinued. For higher-density new purchases, C1300-24XT is the current replacement; CBS350-12XT fits like-for-like replacement of smaller installed units where twelve connections suffice.
C1300-12XT-2X provides twelve dedicated 10G copper connections plus two separate SFP+ uplinks; CBS350-12XT shares its two SFP+ connections with copper ports. The newer switch is the current replacement. Specify C1300-12XT-2X when every copper connection must remain available alongside fiber uplinks; reserve CBS350-12XT for like-for-like installed-unit replacement.
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