SG550X-48-K9 Cisco Small Business 48-Ports 10/100/1000Base-T 1Gbps PoE+ Managed Layer 3 Switch
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SG550X-48-K9 Overview
The Cisco SG550X-48-K9 is a 48-port Gigabit Ethernet Layer 3 managed switch from the Cisco Small Business 550X Series, built to deliver enterprise-class performance, scalability, and flexibility for growing business networks. It provides 48 x 10/100/1000Base-T RJ-45 Gigabit Ethernet ports with full support for PoE+ (Power over Ethernet Plus), enabling direct powering of devices such as IP phones, wireless access points, surveillance cameras, and collaboration endpoints without separate power supplies.In addition to the 48 Gigabit ports, the switch features 4 x 10 Gigabit SFP+ combo uplink ports, offering fiber connectivity and high-speed uplinks for smooth integration with core switches, data centers, or server farms.
SG550X-48-K9 Technical Specifications
Cisco Small Business 48-Ports 10/100/1000Base-T 1Gbps PoE+ Managed Layer 3 Rack-mountable with combo 10 Gigabit SFP+ Switch
Manufacturer: Cisco
Manufacturer Part Number: SG550X-48-K9
Series: Small Business 550X
Type: Managed Stackable Gigabit Switch
Ports: 48 x 10/100/1000 RJ-45 Gigabit Ethernet
Uplink Ports: 4 x 10 Gigabit SFP+ (combo)
PoE Support: Not available (non-PoE model)
Switching Capacity: 176 Gbps
Forwarding Rate: 130.95 Mpps
Layer Support: Layer 2 switching + Layer 3 static and dynamic routing
Stacking Support: Yes, up to 8 units, 80 Gbps stack bandwidth
Management: Web GUI, CLI, SNMP, RMON
VLAN Support: Up to 4096 VLANs
QoS: Advanced traffic prioritization, 8 hardware queues
Security: 802.1X authentication, ACLs, DHCP snooping, DoS prevention
MAC Address Table: 32K entries
Jumbo Frames: Up to 9K bytes
Resiliency: STP, RSTP, MSTP, VRRP, link aggregation
Form Factor: Rack-mountable, 1U
