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SG300-28
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- 26 10/100/1000 ports, 2 combo mini-GBIC ports
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SG300-28 Overview
SG300-28 is a Cisco Small Business managed switch featuring a robust architecture designed to deliver secure and reliable Layer 2 switching with limited Layer 3 routing capabilities. It supports versatile power options via a standard AC power supply and provides a mix of 10/100/1000 RJ45 ports alongside 4 SFP combo uplink ports for flexible connectivity.
Built with stacking and scalability in mind, the SG300-28 enables simplified network expansion and improved performance for small to mid‐sized environments. Its high switching capacity, efficient management using LAN Lite software, and targeted use cases in enterprise edge networks make it ideal for organizations seeking dependable connectivity without unnecessary complexity.
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SG300-28 Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | N/A |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 24 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Combo |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | SG300-28 |
| 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 | 24 x 10/100/1000 RJ45 ports and 4 x 10/100/1000 SFP combo ports |
| Flash Memory | 64 MB |
| Switching Capacity | 56 Gbps |
| Switching Capacity With Stacking | 112 Gbps |
| Product Name | Cisco Small Business SG300-28 Managed Switch |
| Height | 1.73 inches |
| Width | 17.3 inches |
| Depth | 10.6 inches |
| Weight | 11.9 lbs |
SG300-28 Use Case
Branch Office High-Availability LAN with VLAN Segmentation and Fiber Uplink
In a distributed professional services firm, the SG300-28-26 delivers 26 copper Gigabit ports for workstations, two combo mini-GBIC uplinks to the headquarters data center, and hardware-based VLANs to isolate HR, finance and guest traffic. IT teams gain resilient, low-latency connectivity over fiber, simplified network segmentation and single-pane management, resulting in 99.99% uptime and streamlined compliance.
Industrial Campus IP Surveillance Aggregation with Gigabit Access
At a manufacturing plant deploying 100+ HD cameras, the SG300-28-26 aggregates each camera’s 10/100/1000 connection on its 26 RJ45 ports, then trunk-aggregates video streams over dual mini-GBIC fiber links to the NVR cluster. The result is non-blocking throughput, deterministic QoS for video, and long-reach resilience—enabling real-time monitoring and rapid forensic retrieval without packet loss.
Mid-Sized Enterprise VoIP and Wi-Fi Converged Access Edge
A regional hotel chain uses the SG300-28-26 to connect 200 VoIP phones and 50 Wi-Fi APs on its copper ports, while leveraging combo mini-GBIC uplinks for redundant links to the core. Advanced QoS policies guarantee crystal-clear voice and prioritized guest Wi-Fi, reducing dropped calls by 95% and improving guest satisfaction scores—backed by centralized switch management and audit-ready security.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | 10.6 inches | 9.4 inches | 11.3 inches | 10.8 inches | 8.5 inches |
| Ethernet Technology | 10/100/1000 | 10/100 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 16 MB | 32 MB | 32 MB |
| Form Factor | Rack-mount | Rack-mount | Desktop / Rack-mount | Desktop / Rack-mount | Desktop / Rack-mount |
| Height | 1.73 inches | 1.75 inches | 1.7 inches | 1.73 inches | 1.75 inches |
| Interface Ports | 10/100/1000 | 10/100 | 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 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | SG300-28 | SG300-10MPP | SG300-28PP | SG300-10PP | SF302-08MP |
| Media Type Supported | Combo | Twisted Pair | Combo | Combo | Twisted Pair |
| Memory | 256 MB | 256 MB | 64 MB | 64 MB | 64 MB |
| Number of Downlink Ports | 24 Ports | 8 Ports | 24 Ports | 8 Ports | 8 Ports |
| Number of Ethernet Ports | 24–48 Ports | Under 12 Ports | 24–48 Ports | Under 12 Ports | Under 12 Ports |
| POE Support | Non POE | POE+ | POE+ | POE+ | POE+ |
| Port/Expansion Slot Details | 24 x 10/100/1000 RJ45 ports and 4 x 10/100/1000 SFP combo ports | 8 PoE ports and 2 combo uplink ports | N/A | 8 PoE ports with 2 combo uplink ports | 8 PoE ports, 2 shared 10/100 uplink ports |
| Power Consumption | N/A | N/A | N/A | 29W | 33 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco Small Business SG300-28 Managed Switch | Cisco Small Business SG300-10MPP | Cisco Small Business SG300-28PP | Cisco Small Business SG300-10PP | Cisco SF302-08MP 8-Port Gigabit PoE+ 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 | No | No | No | No |
| SFP Ports | 4 SFP Ports | Combo | 4 SFP Ports | Combo | N/A |
| Switching Capacity | 56 Gbps | 12.8 Gbps | 56 Gbps | 20 Gbps | 16 Gbps |
| Switching Capacity with Stacking | 112 Gbps | 25.6 Gbps | N/A | N/A | 32 Gbps |
| Uplink Configuration | 1G | 1G | 1G | 1G | 1G |
| Weight | 11.9 lbs | 7.3 lbs | 12 lbs | 7.5 lbs | 5 lbs |
| Width | 17.3 inches | 17.3 inches | 17.3 inches | 8.66 inches | 17.5 inches |
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Questions & Answers
Q
What is the Cisco SG300-28 managed switch?
A
The Cisco SG300-28 is a Layer 3 managed switch featuring 26 10/100/1000 Ethernet ports and 2 combo mini-GBIC slots, delivering advanced switching, QoS, and security for small business networks.
Q
How many ports does the SG300-28 offer?
A
The SG300-28 offers 26 10/100/1000 RJ-45 ports plus 2 combo mini-GBIC ports, allowing flexible copper and fiber uplink connectivity.
Q
Does the SG300-28 support gigabit speeds on all ports?
A
Yes, all 26 RJ-45 ports support 10/100/1000 Mbps auto-negotiation for full gigabit performance where supported by connected devices.
Q
What are combo mini-GBIC ports on the SG300-28?
A
Combo mini-GBIC ports share an RJ-45 port and a mini-GBIC slot per pair, enabling you to choose copper or fiber connectivity without adding extra ports.
Q
Which fiber modules are compatible with the SG300-28?
A
The SG300-28 is compatible with Cisco GLC series SFP modules (e.g., GLC-SX, GLC-LH) supporting multimode or single-mode fiber at up to 1 Gbps.
Q
Does the SG300-28 support Layer 3 static routing?
A
Yes, the SG300-28 provides basic Layer 3 static routing and inter-VLAN routing for improved traffic management in small networks.
Q
How do I configure VLANs on the SG300-28?
A
You can configure VLANs via the web-based GUI or command-line interface (CLI) by creating VLAN IDs, assigning ports, and applying VLAN membership settings.
Q
What management interfaces are available on the SG300-28?
A
The SG300-28 supports web GUI, CLI (SSH/Telnet), and SNMP for flexible management and monitoring of switch features and performance.
Q
Is Power over Ethernet (PoE) supported on the SG300-28?
A
No, the SG300-28 does not support PoE. For PoE requirements, consider Cisco SG300-28P or other PoE-enabled models.
Q
What QoS features does the SG300-28 provide?
A
The SG300-28 delivers 4 hardware queues per port, 8 priority queues, traffic shaping, and classification based on 802.1p, DSCP, or port rules for optimized latency.
Q
Can the SG300-28 be rack-mounted?
A
Yes, the SG300-28 includes rack-mount brackets and mounting hardware for standard 19-inch rack installation in data closets or equipment cabinets.
Q
How do I update the firmware on the SG300-28?
A
Firmware updates can be applied via the web GUI under Administration > Firmware Upgrade or via CLI using the copy tftp flash command.
Q
What security features are built into the SG300-28?
A
The SG300-28 offers access control lists (ACLs), 802.1X port-based authentication, DHCP snooping, IP source guard, and dynamic ARP inspection for robust network security.
Q
How do I reset the SG300-28 to factory defaults?
A
Press and hold the Mode button for 10 seconds or use the web GUI/System > Reset to restore factory-default settings.
Q
What are the power and energy efficiency specifications?
A
The SG300-28 consumes approximately 15 W under typical load and supports Energy Efficient Ethernet (IEEE 802.3az) to reduce power usage during low traffic periods.
Q
What technical support and warranty come with the SG300-28?
A
The SG300-28 includes a limited lifetime hardware warranty and access to Cisco Small Business support resources, including online documentation and firmware updates.
