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CBS350-12NP-4X
Cisco CBS350-12NP-4X Business 350 12-Port Multigigabit PoE+...
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CBS350-12NP-4X is a managed Layer 2+ access switch with twelve copper ports supporting 100M/1G/2.5G/5G endpoint connections. Four fixed 10G uplinks comprise two dedicated SFP+ ports and two copper/SFP+ combo ports, with one interface active per combo connection. PoE+ supplies endpoint power over the access cabling, making the configuration relevant to wireless access points, IP phones, and surveillance equipment requiring powered copper connections. The Cisco Business 350 Series Managed Switches configuration occupies a full-width 1U rack position rather than a compact desktop enclosure. Within the Cisco Business portfolio, this model serves small-office networks combining multigigabit endpoints with faster distribution connections. The discontinued CBS350-48NGP-4X offers a larger 740W PoE allocation, distinguishing it from this model where aggregate endpoint power is the purchasing constraint.
CBS350-12NP-4X price for new stock is is available on request. Get immediate quote. CBS350-12NP-4X refurb price is $813.75.
Request bulk order quote for CBS350-12NP-4X for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
200 Gbps switching capacity provides wire-speed, nonblocking switching across the built-in interfaces. 148.8 Mpps forwarding at 64-byte packets defines packet-processing capacity separately from the interface speeds. 375W of shared PoE power must cover the combined allocation to connected powered endpoints. Static IPv4 routing, RIP v2, and PBR provide local routing options, with capacity for 990 static IPv4 routes; IPv6 packet routing is also supported. CBS350-12NP-4X carries 512 MB DRAM, 256 MB flash memory, and a 3 MB packet buffer shared dynamically across its ports. The MAC table accommodates 16000 entries for Ethernet forwarding. Three cooling fans mean installation planning must allow for active cooling rather than fanless operation. 494.5W maximum consumption with PoE supplies the upper power figure for electrical planning, not the smaller system-only consumption figure. A modular uplink bay is absent, so expansion cannot add a removable uplink card to the chassis.
ORM Systems supplies CBS350-12NP-4X new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units; every condition includes 30-day returns, with terms applying. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed links on every port, clean boot, PoE output under load on every powered port, and optics bay recognition; firmware is verified and configuration wiped to factory default. Specify condition, quantity, and destination market on the PO. Enterprise and volume POs are accepted, with Net-30 for government, RMA with advance replacement, and regional stock and RMA coverage in the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 12 x 5G PoE+ / 4 x 10G |
PoE Budget | 375W |
Stacking | Hardware stacking / 4 members |
Max Power Draw | 494.5W |
Cooling | 3 fans |
Lifecycle Status | End-of-sale May 30, 2024 / support ends May 31, 2029 |
CBS350-12NP-4X sits in an access closet and terminates high-speed copper runs from Wi-Fi access points, phones, cameras, and workstations on 12 100M/1G/2.5G/5G PoE+ ports. The 375W PoE budget supports dense powered endpoints, including 60W PoE on eight ports. Engineers place VLANs, QoS, 802.1X, DHCP snooping, and PoE policy at the powered edge, then hand traffic northbound through four 10G uplinks. The result is powered multigigabit access with local segmentation and fewer oversubscribed copper runs across compact closet refreshes and expansions.
CBS350-12NP-4X presents a compact access block to distribution using four 10G uplinks arranged as two 10G copper/SFP+ combo ports and two dedicated SFP+ ports. Engineers match each uplink to copper, DAC, or fiber handoff requirements, then configure LACP, trunks, routed interfaces, or VLAN interfaces according to the campus design. The access layer keeps 5G powered endpoints local while forwarding northbound traffic at 10G. The result is a cleaner access-to-distribution boundary with predictable uplink capacity and media selection.
Several compatible Cisco Business 350 switches form a hardware stack of up to four units, with CBS350-12NP-4X contributing 12 multigigabit PoE+ access ports and four 10G uplink ports per member. Operations teams manage the stack through one IP address, shared control behavior, active/standby stack control, and cross-stack features such as LAGs, VLANs, QoS, and port mirroring. Engineers standardize stacking links, firmware, VLAN templates, and PoE allocation before expanding a closet. The result is higher powered access density with unified administration and controlled failover behavior.
For like-for-like refresh of discontinued SG350X-12PMV-K9-NA equipment, CBS350-12NP-4X-NA is the named replacement, although that model is also discontinued. Regional variants must match the destination market. Confirm acceptance of discontinued hardware and specify the North American ordering PID before issuing the replacement PO.
When an office requires local routing between network segments, the switch supports 128 IP interfaces using physical ports, link aggregation groups, VLAN interfaces, or loopbacks. Prepare the interface inventory alongside the routing configuration, then confirm that the required interface count fits before specifying the deployment quantity.
When a rollout requires traffic inspection before production installation, port mirroring can send traffic from eight source ports to one destination port. Reserve the analyzer connection in the staging configuration, identify the interfaces to inspect, and specify the required test arrangement before releasing the hardware PO.
10G access links for every endpoint
CBS350-12NP-4X access ports stop at 5G; 10G connections are confined to the fixed uplinks. The switch cannot provide twelve native 10G copper endpoint connections.
Fanless operation in occupied spaces
CBS350-12NP-4X uses three cooling fans rather than a fanless enclosure. A purchasing requirement for hardware without cooling fans excludes this model.
Continued firmware and security fixes
CBS350-12NP-4X software maintenance and security support ended May 30, 2025. Hardware support continues only through May 31, 2029, with no direct migration replacement available.
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| CBS350-12NP-4X |  CBS350-8MP-2X |  SG350-28MP |  SF350-24 |  SF350-48 | |
|---|---|---|---|---|---|
| Depth | 257 mm | 252 mm | 257 mm | 202 mm | 257 mm |
| Ethernet Technology | Multi-Gigabit (2.5G/5G) | Multi-Gigabit (2.5G) | Gigabit Ethernet | Fast Ethernet | Fast Ethernet |
| 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 | CBS350-12NP-4X | CBS350-8MP-2X | SG350-28MP | SF350-24 | SF350-48 |
| Memory | 512 MB | 512 MB DRAM / 256 MB Flash | 512 MB | 512 MB | 512 MB |
| Power Consumption | 494.5W | 375W | 451.2W | 10.9W | 24.2W |
| Switching Capacity | 200 Gbps | 80 Gbps | 56 Gbps | 12.8 Gbps | 17.6 Gbps |
| Weight | 4.24 kg | 2.74 kg | 3.37 kg. | 2.72 kg | 3.58 kg |
| Width | 440 mm | 344 mm | 440 mm | 440 mm | 440 mm |
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CBS350-12NP-4X identifies the Business 350 family through CBS350, twelve access ports through 12, the multigigabit PoE+ configuration through NP, and four 10G uplinks through 4X. Access speeds are 100M/1G/2.5G/5G. Eight access ports support 60W PoE, and a country or regional suffix completes the orderable product number.
Cisco Business 350 switches support an HTTP/HTTPS web interface, full or menu-based CLI over console, SSH or Telnet, SNMP, Cisco Business Dashboard, and the Cisco Business mobile app. Cisco Network Plug and Play supports provisioning. An embedded Dashboard probe eliminates the need for a separate on-site probe appliance.
CBS350-12NP-4X provides a shared 375W PoE budget across twelve powered access ports, eight of which support 60W PoE. The per-port capability does not mean every powered port can draw its maximum simultaneously. Add the endpoint power requirements and verify the combined allocation before finalizing the powered-device inventory.
CBS350-12NP-4X has four fixed 10G uplinks: two dedicated SFP+ ports and two copper/SFP+ combo ports. Each combo connection activates either its copper interface or its optical interface, not both. SFP-10G-SR supports multimode fiber and SFP-10G-LR supports single-mode fiber; specify the required transceivers separately on the purchase order.
Yes, CBS350-12NP-4X supports hardware stacking with four members using 10G interfaces, rather than dashboard grouping. Ring and chain topologies are available with active and standby stack control. Ports assigned to stacking serve the interconnects, so specify stack connectivity and the remaining uplink connections together before ordering.
CBS350-12NP-4X supports static IPv4 routing, RIP v2, PBR, and IPv6 packet routing, with 990 static IPv4 routes and 128 IP interfaces. Routing interfaces can use physical ports, link aggregation groups, VLANs, or loopbacks. Specify the required routing behavior and interface count rather than assuming enterprise routing protocol coverage.
No, CBS350-12NP-4X uses an included internal universal AC power supply accepting 100-240V AC at 50-60 Hz. The package includes a power cord and mounting kit. The power supply and mounting accessories are not separately orderable spares, so specify the destination-market variant and required package contents when ordering.
CBS350-12NP-4X ended sale on May 30, 2024; software maintenance and security support ended May 30, 2025. The last date of support is May 31, 2029. Cisco has no direct migration replacement for this model, so continued hardware service availability does not mean that new security fixes remain available.
CBS350-12NP-4X replaces discontinued SG350X-12PMV-K9-AR, SG350X-12PMV-K9-AU, SG350X-12PMV-K9-BR, SG350X-12PMV-K9-EU, SG350X-12PMV-K9-IN, SG350X-12PMV-K9-JP, SG350X-12PMV-K9-NA, and SG350X-12PMV-K9-UK through corresponding regional versions. Those older models ended sale on July 30, 2022. CBS350-12NP-4X is also discontinued, so this relationship identifies a historical hardware migration rather than a current software-support refresh.
CBS350-12NP-4X provides a 375W PoE budget, whereas CBS350-48NGP-4X provides 740W. Both models are discontinued and have no direct migration replacement. For installed-hardware purchasing, CBS350-12NP-4X accommodates the smaller aggregate powered load; CBS350-48NGP-4X accommodates a larger aggregate load, subject to its individual port power limits.
Yes, CBS350-12NP-4X is a full-width 1U rack-mount switch measuring 440 mm wide, 257 mm deep, and 44 mm high, with a weight of 4.24 kg. A mounting kit is included. Confirm rack depth, cable clearance, and the destination-market power cord before specifying the installation package.
CBS350-12NP-4X delivers 200 Gbps switching capacity and 148.8 Mpps forwarding at 64-byte packets, with wire-speed, nonblocking operation. A 3 MB packet buffer is shared dynamically across the interfaces. The switch also carries 512 MB DRAM and 256 MB flash memory; these are separate from the packet-buffer capacity.
ORM Systems offers CBS350-12NP-4X 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 subject to entitlement, with service ending May 31, 2029, the last date of support.
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