Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch
Brand: Cisco | Category: Network Switches
SKU: CSC-SG350-28P-K9 | Part #: SG350-28P-K9 | MPN: SG350-28P-K9
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About the Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch
The Cisco Business 350 Series switch (SG350-28P-K9) delivers 28 ports with 24 Gigabit PoE+ ports, 2 SFP combo ports, and 2 dedicated SFP uplink ports for a total of 4 SFP/uplink slots, enabling dense connectivity at 56 Gbps switching capacity and 41.67 Mpps forwarding rate. Network engineers and IT procurement teams deploying mid-market branch offices or campus networks will appreciate the combination of high port density, 195W PoE power budget for powered devices, and Layer 3 routing capabilities built into a single platform.
The Cisco SG350-28P-K9 supports IEEE 802.3af and IEEE 802.3at (PoE+) standards, 802.1Q VLAN support up to 4,094 VLANs, and comprehensive security controls including ACL, Port Security, 802.1X, DHCP Snooping, Dynamic ARP Inspection, and IP Source Guard. Advanced features include IPv4/IPv6 static routing, IPv6 host and ACL support, MLD snooping, Spanning Tree Protocol variants (STP, RSTP, MSTP), and QoS with 802.1p CoS, DSCP, and 4 queues per port. The 16,000-entry MAC address table supports large-scale network deployments. Management is accessible via Web GUI, CLI (SSH/Telnet), and SNMP v1/v2c/v3 with RMON monitoring.
Typical Deployment Scenarios
- Branch office network consolidation with integrated PoE powering for IP phones, wireless access points, and IoT sensors
- Campus access-layer switching where VLAN segmentation and Layer 3 routing reduce core network load
- Small-to-medium data center top-of-rack switching with SFP uplinks for scalable interconnect
- Retail or healthcare environments requiring port security, 802.1X authentication, and DHCP Snooping for device control
- IP surveillance deployments leveraging PoE+ budget to power multiple cameras and edge storage devices
For technical specifications, compatibility verification, or volume quotes on the SG350-28P-K9, contact the Omnixon Global team to submit an RFQ.
Technical Specifications
| Brand | Cisco |
| Category | Network Switches |
| SKU | CSC-SG350-28P-K9 |
| Part Number | SG350-28P-K9 |
| Condition | New |
| Form Factor | Rack-Mount |
| Interface | Gigabit Ethernet |
| Manufacturer Part Number | SG350-28P-K9 |
| Product Series | Cisco Business 350 Series |
| Total Ports | 28 |
| PoE+ Ports (RJ-45 Gigabit) | 24 |
| SFP Combo Ports | 2 |
| Dedicated SFP Uplink Ports | 2 |
| Total SFP/Uplink Slots | 4 |
| PoE Standard | IEEE 802.3af / IEEE 802.3at (PoE+) |
| PoE Power Budget | 195W |
| Switching Capacity | 56 Gbps |
| Forwarding Rate | 41.67 Mpps |
| MAC Address Table Size | 16,000 entries |
| VLAN Support | 802.1Q, up to 4,094 VLANs |
| Spanning Tree Protocol | STP, RSTP (802.1w), MSTP (802.1s) |
| Layer 3 Features | IPv4/IPv6 Static Routing |
| IPv6 Support | Yes — IPv6 host, IPv6 ACL, MLD snooping |
| QoS | 802.1p CoS, DSCP, 4 queues per port |
| Security Features | ACL, Port Security, 802.1X, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard |
| Management Interfaces | Web GUI, CLI (SSH/Telnet), SNMP v1/v2c/v3, RMON |
| Form Factor | 1U Rack-Mount |
| Dimensions (W x D x H) | 440 x 257 x 44 mm |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
Frequently Asked Questions about Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch
What does the Cisco Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch do?
The Cisco Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
Is the Cisco Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch compatible with my infrastructure?
The Cisco Cisco Business / Small Business switch SG350-28P-K9 Cisco Small Business / Business switch interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.