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SG220-50-K9 - Cisco 220 Series 50-Port Gigabit Smart Plus Switch
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Cisco SG220-50-K9 is a 48-port Gigabit Ethernet Smart Plus switch with 2 combo Gigabit RJ45/SFP uplinks, offering managed-switch security and QoS at a smart-switch price.
The Cisco SG220-50-K9 is a member of the Cisco 220 Series Smart Plus Switches, a line positioned between fully unmanaged smart switches and complex managed switches. It provides 48 10/100/1000 Gigabit Ethernet RJ-45 ports plus 2 additional Gigabit Ethernet combo ports (RJ45/SFP), giving a total of 50 ports for network connectivity. Designed for small and midsize businesses, it delivers business-class features such as VLAN segmentation, Quality of Service (QoS), Access Control Lists (ACLs), Spanning Tree Protocol variants, and link aggregation, all managed through an intuitive browser-based interface. With a switching capacity of 100 Gbps and a forwarding rate of 74.40 Mpps, the switch supports demanding traffic loads including converged voice, video, and data applications. It is built for desktop or rack-mount deployment and is backed by Cisco's Limited Lifetime Hardware Warranty, making it a cost-effective, scalable solution for growing network infrastructures.
| Specification | Value |
|---|---|
| Manufacturer | Cisco Systems, Inc. |
| Product Family | Cisco 220 Series Smart Plus Switches |
| Product Series | SG220 |
| Model | SG220-50-K9 |
| Product Type | Layer 2 Managed/Smart Plus Ethernet Switch |
| Total Ports | 50 (48x 10/100/1000 RJ-45 + 2x Gigabit RJ45/SFP combo) |
| Uplink Ports | 2 Gigabit Ethernet combo (RJ45/SFP) |
| PoE Support | None (non-PoE model; PoE variant is SG220-50P) |
| Switching Capacity | 100 Gbps |
| Forwarding Rate | 74.40 Mpps (64-byte packets) |
| MAC Address Table | Up to 8,192 entries |
| VLAN Support | Up to 256 VLANs, port-based and 802.1Q tag-based |
| Flash Memory | 32 MB |
| DRAM/CPU Memory | 128 MB |
| Packet Buffer | 12 Mb |
| Link Aggregation | 802.3ad LACP, up to 8 groups, 8 ports per group |
| Spanning Tree | 802.1d STP, 802.1w RSTP, 802.1s MSTP (16 instances) |
| Power Supply | 100-240V AC, 50-60 Hz |
| Cooling | Internal fan, 1 pc/6300 rpm, no fan speed control |
| Dimensions | 440 x 44 x 201 mm |
| Mounting | Desktop or rack mount |
| Layer Supported | Layer 2 |
| Warranty | Limited Lifetime Hardware Warranty |
| Management | Browser-based GUI management |
- 48 Gigabit Ethernet RJ-45 ports for high-speed wired connectivity
- 2 additional Gigabit combo ports (RJ45/SFP) for flexible uplinks
- 100 Gbps switching capacity for high-throughput network environments
- Support for up to 256 VLANs for network segmentation and traffic control
- 802.3ad Link Aggregation Control Protocol (LACP) with up to 8 groups
- Spanning Tree Protocol support (STP, RSTP, MSTP) for loop prevention and fast convergence
- Access Control Lists (ACLs) and Quality of Service (QoS) for traffic prioritization and security
- Intuitive browser-based management interface simplifying setup and configuration
- MAC address table supporting up to 8,192 entries for scalable switching
- IGMP and MLD snooping for efficient multicast traffic handling
- Auto Voice VLAN for simplified VoIP deployment
- Backed by Cisco Limited Lifetime Hardware Warranty
Designed to deliver reliable, scalable, and secure Gigabit connectivity for growing small and midsize business networks.
- Core or access-layer switching for small to midsize office networks
- Connecting VoIP phones and unified communications endpoints
- Supporting IP surveillance camera deployments
- Providing uplink connectivity to servers or network backbones via SFP ports
- Segmenting departmental or guest network traffic using VLANs
- Aggregating links for increased bandwidth and redundancy between switches
- Deploying converged data, voice, and video services on a single infrastructure
- High port density for growing networks
- Managed-switch security at smart-switch pricing
- Simplified setup via browser-based tools
- Flexible SFP uplinks for fiber connectivity
- Reliable QoS for voice and video traffic
- Backed by Cisco Lifetime Hardware Warranty
| Interface Type | Details |
|---|---|
| Gigabit Ethernet RJ-45 | 48 x 10/100/1000 Mbps auto-sensing copper ports |
| Gigabit Combo Uplink | 2 x Gigabit RJ45/SFP combo ports (one active at a time per port) |
| Console | Console port with included console cable for CLI/management access |
- Dimensions: 440 x 44 x 201 mm
- Mounting Options: Desktop or rack mount (1U)
- Cooling: Internal fan, 1 pc at 6300 rpm
- Operating Temperature: 0°C to 50°C (per Cisco 220 series family documentation)
Per available Cisco documentation, the SG220-50-K9 is validated for use with the following:
- Cisco 220 Series Smart Plus Switch accessories and mounting kits
- Cisco MGB series SFP Gigabit Ethernet transceivers
- Cisco MFE series SFP Fast Ethernet transceivers
- Standard Category 5e/6 twisted-pair Ethernet cabling
- Cisco Small Business unified communications and IP telephony products
- IEEE 802.1Q VLAN-compliant network devices
- IEEE 802.3ad LACP-compliant switches for link aggregation
Note: Country/region-specific SKUs (e.g., -NA, -EU, -UK) share the same core hardware specifications; SFP module compatibility should be verified against the specific Cisco MGB/MFE transceiver ordering guide.
- Cisco 220 Series Ethernet switch
- Power cord
- Mounting kit
- Console cable
- CD-ROM with user documentation (PDF)
- Quick start guide
Q: How many ports does the Cisco SG220-50-K9 have?
A: It provides 50 total ports: 48 Gigabit Ethernet RJ-45 ports and 2 additional Gigabit combo ports supporting either RJ45 or SFP connections.
Q: Does the SG220-50-K9 support Power over Ethernet (PoE)?
A: No, this specific model does not provide PoE. The PoE-enabled equivalent in the same series is the SG220-50P-K9, which offers a 375W PoE power budget.
Q: What is the switching capacity of the SG220-50-K9?
A: According to third-party technical listings, the switch offers a switching capacity of 100 Gbps and a forwarding rate of 74.40 Mpps for 64-byte packets.
Q: Is the SG220-50-K9 a fully managed switch?
A: It is classified by Cisco as a 'Smart Plus' switch, positioned between basic smart switches and fully managed switches, offering advanced Layer 2 features via a browser-based interface.
Q: What VLAN capacity does this switch support?
A: The switch supports up to 256 VLANs simultaneously, including port-based, 802.1Q tag-based, management, and guest VLANs.
Q: What warranty does the SG220-50-K9 come with?
A: Per Cisco's official datasheet, the switch is covered by a Limited Lifetime Hardware Warranty.
Q: What is included in the box with the SG220-50-K9?
A: The package includes the switch unit, a power cord, a mounting kit, a console cable, a CD-ROM with documentation, and a quick start guide.
Q: Can the SG220-50-K9 be rack mounted?
A: Yes, the switch supports both desktop placement and standard rack mounting, with dimensions of 440 x 44 x 201 mm.
























