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SG350-28-K9-EU
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- 8 SFP Gigabit slots, 2 Gigabit copper/SFP combo
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SG350-28-K9-EU Overview
SG350-28-K9-EU is a high-performance managed switch designed to deliver robust Layer 2 and Layer 3 connectivity with a compact desktop and rack-mount form factor. It incorporates a flexible architecture that supports a range of power options via an AC power supply, while offering a variety of ports including 24 fixed Ethernet ports and 4 SFP uplink ports for versatile network deployment.
SG350-28-K9-EU supports advanced stacking capabilities that enhance scalability and performance in distributed enterprise or branch office environments. Ideal for critical business applications and converged networks, it delivers high switching capacity and reliable connectivity, making it perfect for organizations seeking to optimize the deployment of high-speed data and voice applications.
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SG350-28-K9-EU Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Desktop / Rack-mount |
| Power Consumption | 35W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 24 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Twisted Pair / Fiber |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | SG350-28-K9-EU |
| Uplink Configuration | 1G |
| IOS | LAN Lite |
| POE Support | Non POE |
| SFP Ports | 4 SFP Ports |
| Memory | 256 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | N/A |
| Flash Memory | 64 MB |
| Switching Capacity | 56 Gbps |
| Switching Capacity With Stacking | 112 Gbps |
| Product Name | Cisco SG350-28-K9-EU Managed Switch |
| Height | 1.73 inches |
| Width | 17 inches |
| Depth | 12 inches |
| Weight | 12 lbs |
SG350-28-K9-EU Use Case
Campus Network Aggregation with High-Speed Fiber Uplinks
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.
Top-of-Rack Data Center Connectivity and Redundancy
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.
Hybrid VoIP and Wireless Deployment for SMB Offices
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.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Depth | 16.9 inches | 12 inches | 12 inches | 14.88 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 64 MB | 256 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Desktop / Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 inches | 1 inch | 1.73 inches | 1.73 inches | 1.73 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Lite | LAN Lite | LAN Lite | LAN Lite | LAN Lite |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 2 / Layer 3 Lite | Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | SG350-52 | SF352-08MP | SG350-28-K9-EU | CBS350-48P-4G | CBS350-24XTS |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber | Twisted Pair / Fiber | Twisted Pair | Twisted Pair / Fiber |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 8 Ports | 24 Ports | 48 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | Under 12 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports |
| POE Support | Non POE | POE+ | Non POE | POE+ | Non POE |
| Port/Expansion Slot Details | N/A | 8 PoE ports, 4 SFP uplink ports | N/A | 48 PoE+ Ethernet ports and 4 dedicated Gigabit SFP uplink ports | 24 Ethernet ports and 4 SFP+ uplink ports |
| Power Consumption | 88 W | 50W | 35W | Approximately 110W | 62 W |
| Power Source | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco Small Business SG350-52 Managed Switch | SF352-08MP Managed PoE Switch | Cisco SG350-28-K9-EU Managed Switch | Cisco Business CBS350-48P-4G Switch | Cisco Business 350 Series CBS350-24XTS Managed Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | No | No | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 104 Gbps | 16 Gbps | 56 Gbps | 104 Gbps | 128 Gbps |
| Switching Capacity with Stacking | N/A | 32 Gbps | 112 Gbps | 160 Gbps | 256 Gbps |
| Uplink Configuration | 1G | 1G | 1G | 1G | 10G |
| Weight | 17 lbs | 8 lbs | 12 lbs | 22 lbs | 14.3 lbs |
| Width | 17.3 inches | 17 inches | 17 inches | 17.32 inches | 17.5 inches |
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Questions & Answers
Q
What is the Cisco SG350-28-K9-EU switch?
A
The Cisco SG350-28-K9-EU is a fully managed, Layer 3 Gigabit switch featuring 18 RJ45 ports, 8 SFP fiber slots, and 2 Gigabit copper/SFP combo ports, optimized for small and medium-sized business networks.
Q
How many Gigabit ports does the SG350-28-K9-EU provide?
A
The SG350-28-K9-EU delivers 18 dedicated Gigabit RJ45 ports plus 2 Gigabit copper/SFP combo ports, for a total of up to 20 copper Gigabit connections.
Q
How many SFP slots are available on this switch?
A
This model includes 8 dedicated SFP fiber slots and 2 additional Gigabit combo ports that support either SFP or copper modules, offering up to 10 fiber uplink options.
Q
Which SFP modules are compatible with the SG350-28-K9-EU?
A
The switch is compatible with Cisco-approved 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, and CWDM/DWDM SFP transceivers to support multi-mode and single-mode fiber links.
Q
Can I use copper and fiber ports simultaneously?
A
Yes. You can run up to 18 copper RJ45 ports concurrently with all 8 SFP fiber ports, plus 2 combo ports, for flexible mixed-media connectivity.
Q
What switching throughput and forwarding rate does it support?
A
The SG350-28-K9-EU delivers up to 128 Gbps switching capacity with a forwarding rate of 95.2 Mpps, ensuring wire-speed performance under heavy loads.
Q
Does the SG350-28-K9-EU support Layer 3 routing features?
A
Yes. It offers static routing, RIP v1/v2, and support for up to 16 OSPF instances, enabling simplified inter-VLAN routing without an external router.
Q
How do I configure VLANs on this Cisco switch?
A
VLANs can be configured via the web-based GUI, Cisco Network Assistant, or CLI; simply navigate to the VLAN menu, define VLAN IDs, and assign ports as access or trunk.
Q
What QoS capabilities are available?
A
The switch provides eight hardware QoS queues per port, 802.1p priority tagging, DSCP classification, and traffic policing to ensure low-latency voice and video.
Q
What security features are built into the SG350-28-K9-EU?
A
It includes 802.1X port authentication, DHCP snooping, dynamic ARP inspection, ACLs, and guest VLAN support to protect against network threats.
Q
Is the SG350-28-K9-EU rack-mountable?
A
Yes. The switch comes with a 1U rack-mount kit and rubber feet, allowing installation in standard 19-inch racks or desktop placement.
Q
What network management options are supported?
A
You can manage the switch via its intuitive web GUI, Cisco Network Assistant, SNMP v1/v2/v3, RMON, CLI over SSH or Telnet, and Cisco Prime Infrastructure.
Q
Does this model support Power over Ethernet (PoE)?
A
No. The SG350-28-K9-EU does not provide PoE or PoE+; for PoE requirements, consider the Cisco SG350X-28P-K9-EU variant.
Q
What are the dimensions and typical power consumption?
A
The switch measures 44.5 cm x 24.5 cm x 4.4 cm (W×D×H) and typically consumes 20 W in standard operation and up to 30 W under maximum load.
Q
What warranty and support options are available?
A
Cisco provides a limited lifetime hardware warranty with next-business-day replacement and 90 days of free Cisco TAC support; extended support contracts are available.
Q
Is the SG350-28-K9-EU suitable for voice and video deployments?
A
Yes. With advanced QoS, voice VLAN, auto-call admission control, and multicast management (IGMP snooping), it optimizes voice and video traffic.
Q
Where can I purchase the Cisco SG350-28-K9-EU?
A
You can buy the SG350-28-K9-EU through authorized Cisco partners, online retailers, or directly from Cisco’s e-commerce portal.
