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SG350-28-K9-EU
Cisco SG350-28-K9-EU 350 24-Port Gigabit Switch, 2x1G SFP an...
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SG350-28-K9-EU provides fanless, managed Gigabit access with 24 dedicated copper ports, two dedicated SFP uplinks and two copper/SFP combo uplinks. Each combo connection uses either its copper interface or its SFP cage, not both simultaneously. Fixed uplinks keep the purchase configuration independent of removable network modules. The Cisco 350 Series serves small-business networks requiring VLAN segmentation, access controls and static routing between local subnets. Its Layer 2+ feature set combines managed switching with inter-VLAN communication rather than dynamic routing. The full-width rack-mount chassis occupies 1U. The discontinued SG350-28P-K9-EU adds endpoint power, while this non-PoE model requires devices to obtain power separately. Copper endpoint connections and fiber uplinks can therefore be specified independently of a shared endpoint-power budget.
SG350-28-K9-EU price for new stock is is available on request. Get immediate quote. SG350-28-K9-EU refurb price is $701.40.
Request bulk order quote for SG350-28-K9-EU for additional pricing. Browse the full Cisco 350 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity supports nonblocking operation across the available connections. 41.66 Mpps forwarding handles minimum-size packets without substituting an aggregate bandwidth figure for packet-processing performance. Static IPv4 routing supports 990 routes, while PBR directs selected traffic toward a chosen next hop. A 16000-entry MAC table accommodates learned Ethernet addresses. SG350-28-K9-EU carries 512 MB of memory and 256 MB of flash for its embedded software and configuration storage. Its 1.5 MB packet buffer is shared dynamically across ports rather than reserved independently for each connection. Browser management provides simple and advanced modes, while CLI access, SNMP and network-management applications cover other administrative workflows. STP, RSTP, MSTP and LACP support loop control and aggregated links. The 350 Series Managed Switch also provides DHCP snooping, IP Source Guard and Dynamic ARP Inspection to validate traffic against address bindings. Dual software images support firmware maintenance without relying on a single stored image.
SG350-28-K9-EU is offered new sealed with up to a 3-year extended ORM warranty or certified refurbished with up to 1 year, with 30-day returns on every condition; terms apply. Refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, optics bay recognition, PSU status and a clean boot, with firmware verified and configuration wiped to factory default. Specify condition, regional power cord and required optics on the purchase order; Cisco's limited lifetime hardware warranty and service end October 31, 2026. Enterprise and volume orders support PO purchasing, Net-30 for government and RMA with advance replacement, with regional stock and RMA coverage across the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24x1G RJ-45 / 2x1G combo / 2x1G SFP |
Max Power Draw | 19.9W |
Cooling | Fanless |
Replaces | SRW2024-K9-EU; end-of-sale May 10, 2018 |
Lifecycle Status | End-of-sale October 30, 2021; last support October 31, 2026 |
Replacement PID | C1300-24T-4G / SG350-28-K9-EU-RF (Cisco remanufactured) |
In a mid-sized university campus, network engineers deploy the SG350-28-K9-EU with its eight SFP Gigabit slots and two Gigabit copper/SFP combo ports as an aggregation switch between building distribution switches and the core router. This configuration delivers scalable fiber connectivity, seamless failover and 16 Gbps of simultaneous throughput, ensuring consistent campuswide access, simplified VLAN segmentation and rapid link restoration in the event of a fiber cut.
In a small data center environment, IT teams install the SG350-28-K9-EU at the top of each server rack to connect up to 8 fiber-attached servers via SFP and establish two copper/SFP combo uplinks to the core switch. This setup optimizes rack-to-core bandwidth, minimizes single-point failures through redundant links, and centralizes switch management via Cisco’s web-based GUI, delivering sub-millisecond latency and predictable performance for virtualization and storage traffic.
An SMB network administrator uses the SG350-28-K9-EU to segregate voice and wireless traffic across multiple floors: IP phones and wireless APs connect to Gigabit copper ports, while two fiber/SFP links extend to an offsite call-control server. Advanced QoS policies prioritize SIP calls and video streams, improving voice clarity by 30%, reducing jitter and packet loss, and enabling remote management of VLANs, PoE settings and firmware updates from a single console.
When several business locations need the same configuration baseline, text-editable configuration files allow a common template to be prepared before installation. Secure autoconfiguration through SCP and DHCP options including 66 and 67 support provisioning workflows. Specify the bootstrap method, configuration template and local recovery access before the purchase order.
When separate departments or tenant groups require their own network segments, the 350 Series supports 4094 simultaneous VLANs and 128 IP interfaces. These limits distinguish the segmentation plan from the number of physical connections. Check the required interfaces, VLAN assignments and address plan before specifying the deployment quantity.
When a staging bench must reproduce a traffic issue before equipment reaches a business location, port mirroring can send eight source ports to one analyzer destination. Only one mirroring session is supported. Specify the monitored connections, analyzer attachment and required session count before ordering switches for the test environment.
Endpoint power over Ethernet
SG350-28-K9-EU supplies no endpoint power through its Ethernet ports. C1300-24P-4G is a current 24-port Gigabit PoE alternative with four dedicated 1G SFP uplinks.
10G uplinks to distribution
SG350-28-K9-EU uplinks operate at 1G and cannot accept an uplink expansion card. C1300-24T-4X provides 24 Gigabit copper ports and four 10G SFP+ uplinks.
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| SG350-28-K9-EU |  CBS350-24XTS |  SF352-08MP |  SG350-52 |  CBS350-48P-4G | |
|---|---|---|---|---|---|
| Depth | 202 mm | 350 mm | 170 mm | 257 mm | 350 mm |
| Ethernet Technology | Gigabit Ethernet | 10 Gigabit Ethernet | Fast Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Desktop | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | SG350-28-K9-EU | CBS350-24XTS | SF352-08MP | SG350-52 | CBS350-48P-4G |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 19.9W | 80.2W | 157.2W | 40.4W at 110V AC | 451.95W |
| Switching Capacity | 56 Gbps | 480 Gbps | 5.6 Gbps | 104 Gbps | 104 Gbps |
| Weight | 2.75 kg | 4.84 kg. | 1.16 kg | 2.75 kg | 5.43 kg |
| Width | 440 mm | 440 mm | 279.4 mm | 440 mm | 445 mm |
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Reviewed on the 24 July 2019
24-port gigabit switch with reliable connectivity, ideal for EU networks.
Reviewed on the 26 September 2017
Durable, professional-grade, and easy to manage.
Reviewed on the 16 June 2025
Consistent throughput with minimal downtime for multiple devices.
Reviewed on the 1 October 2024
Efficient and reliable for medium-sized office deployments.
Reviewed on the 9 July 2021
Stable network operations with professional-grade features.
SG350-28-K9-EU identifies the regional ordering form of the SG350-28 Gigabit managed switch. SG350 identifies the Gigabit model within the 350 Series, while 28 describes its total logical connections. SG350-28-K9 is the ordering identifier before the EU regional suffix, which covers the European Union and additional specified markets.
SG350-28-K9-EU supports browser management over HTTP or HTTPS, a console CLI, remote CLI access over SSH or Telnet, and SNMP versions 1, 2c and 3. Smart Network Application and FindIT Network Manager and Probe provide additional network-level management paths. The browser interface includes simple and advanced operating modes.
Yes, SG350-28-K9-EU supports static routing between VLANs, with 990 IPv4 static routes and 128 IP interfaces. IPv6 routing and PBR are also available. The Layer 2+ designation reflects its static-routing feature set rather than a dynamic-routing license tier. Size the interface and route requirements separately before configuring inter-VLAN communication.
SG350-28-K9-EU supports MGBSX1 for multimode fiber to 500 m, MGBLX1 for single-mode fiber to 10 km and MGBLH1 for single-mode fiber to 40 km. These transceivers operate at 1G. Select the optical PID for the fiber type and link distance, and order transceivers separately from the switch.
SG350-28-K9-EU provides 24 dedicated copper connections, two dedicated SFP connections and two copper/SFP combo connections, for 28 logical ports. Each combo connection activates only one medium at a time. Using its SFP side therefore disables the corresponding copper side rather than adding another independently usable connection.
Yes, SG350-28-K9-EU reached end-of-sale on October 30, 2021, and its last date of support is October 31, 2026. Software maintenance releases ended October 30, 2022. Its original replacement, CBS350-24T-4G-EU, is also discontinued; the forward migration chain now ends at C1300-24T-4G.
SG350-28-K9-EU replaces SRW2024-K9-EU, the regional ordering code for the SG300-28 Gigabit managed switch. SRW2024-K9-EU reached end-of-sale on May 10, 2018, and its support ended May 31, 2023. The replacement relationship concerns the hardware migration path; existing configurations still require review before transfer to the newer switch.
SG350-28-K9-EU does not supply endpoint power, whereas SG350-28P-K9-EU has 24 powered ports sharing a 195W budget. Both models are discontinued. The non-PoE model suits retained installations with separately powered equipment; the powered version addresses retained installations requiring Ethernet-delivered power, subject to its shared budget.
SG350-28-K9-EU has 24 dedicated copper access ports, while SG350-52-K9-EU has 48. Both retain two dedicated SFP connections and two copper/SFP combo connections, and both are discontinued. The smaller model suits an existing lower-density installation; the larger model accommodates more copper endpoints within a retained 350 Series environment.
SG350-28-K9-EU has two dedicated SFP uplinks plus two copper/SFP combo uplinks, while C1300-24T-4G has four dedicated SFP uplinks. Both provide 24 dedicated Gigabit copper access ports. The discontinued SG350 model suits retained hardware matching; C1300-24T-4G is the current migration choice when all four fiber uplinks must be dedicated.
Yes, SG350-28-K9-EU is fanless and uses a full-width 1U rack-mount chassis measuring 440 mm wide, 44 mm high and 202 mm deep. Its weight is 2.75 kg. The operating temperature range is 0°C to 50°C, and its internal universal AC supply accepts 100-240V AC.
ORM Systems offers SG350-28-K9-EU new sealed with up to a 3-year extended warranty, or certified refurbished with up to 1 year. Every condition has 30-day returns; terms apply. Cisco's limited lifetime hardware warranty and service end October 31, 2026. Refurbished units are inspected and bench-tested, with firmware verified and configurations wiped to factory default.
SG350-28-K9-EU-RF is the Cisco remanufactured ordering form associated with SG350-28-K9-EU, rather than ORM Systems' certified refurbishment condition. Cisco remanufacturing and reseller refurbishment are separate classifications. Specify the required condition explicitly on the purchase order instead of treating an RF ordering code and a certified refurbished listing as interchangeable.
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