Overview

• Product Name: UniFi Switch Mission Critical
  
• Model: USW-Mission-Critical
  
• Product Type: UPS-Integrated Layer 2 / Layer 3 Ethernet Switch
  
• Form Factor: 1U Rack-mountable
  
• Key Features: Internal backup lithium-ion battery, high-power PoE++ output, and backup power control AC outlets
  

Performance & Capacity

• Switching Capacity: 18 Gbps
  
• Total Non-Blocking Throughput: 9 Gbps
  
• Forwarding Rate: 13 Mpps
  
• VLAN Support: 1,000
  
• MAC Address Table Size: 8,000 entries
  
• Packet Buffer: 0.5 MB
  
• Access Control Lists (ACL): IPv4: 128 / MAC: 128
  

Port Layout & PoE

• Total Physical Ports: 9 GbE RJ45 ports (10/100/1000 Mbps)
  
• PoE Port Distribution:
  • PoE++ (802.3bt): 4 ports
    
  • PoE+ (802.3at): 4 ports
    
  • Non-PoE Data / Management Port: 1 port
    
• Total PoE Availability: 120W (when powered by AC)
  
• Max. PSE Wattage per Port:
  • PoE+ Port: Up to 32W
    
  • PoE++ Port: Up to 64W
    
• PoE Voltage Range:
  • PoE Mode: 44–57V DC
    
  • PoE+ / PoE++ Mode: 50–57V DC
    

Power & Battery System

• Internal Battery Type: Lithium-ion (Li-ion)
  
• Internal Battery Capacity: 368 Wh
  
• Backup AC Power Outlets:
  • US Version: (2) 110V AC power control outlets (Max. 0.72A, 60 Hz)
    
  • EU Version: (2) 230V AC power control outlets (Max. 0.35A, 50 Hz)
    
  • AC Outlet Output Budget: 80W
    
• Power Method:
  • Universal AC Input: 100–240V AC, 50/60 Hz (built-in 240W AC/DC power supply)
    
  • External DC Backup Input: 48V DC Terminal Block
    
• Power Consumption:
  • Base Consumption (excluding PoE / AC outlet load): 50W
    
  • Max. Power Consumption (including full PoE and AC outlet load): 240W
    
• Heat Dissipation: 170.6 BTU/hr (excluding PoE output)
  

Physical & Environmental

• Dimensions: 442 x 480 x 44 mm (17.4 x 18.9 x 1.7")
  
• Weight:
  • Without Mount Brackets: 9 kg (19.9 lb)
    
  • With Mount Brackets: 9.2 kg (20.3 lb)
    
• Enclosure & Mount Material: SGCC Galvanized Steel
  
• Rack Support: 19" 4-post standard rack (depth requirement: 700 to 1,000 mm)
  
• LCM Display: 1.3" Touchscreen LCM Color Display
  
• ESD/EMP Protection: Air: ±24kV, Contact: ±24kV
  
• Ambient Operating Temperature: -5°C to 40°C (23°F to 104°F)
  
• Ambient Operating Humidity: 5% to 95% (non-condensing)
  
• Certifications: CE, FCC, IC, Anatel: 06679-25-08356
  

Software & Networking Features

• Layer 2 / Layer 3 Support: Complete Layer 2 feature set, Layer 3 static routing, DHCP server
  
• Link Aggregation: LACP Port Aggregation
  
• Spanning Tree Protocol: STP, RSTP (with priority configuration and port disabling)
  
• Multicast & Services: Advanced IGMP Snooping, mDNS, LLDP-MED, Voice VLAN
  
• Security & Access Control:
  • 802.1X Authentication and MAC-based Authentication
    
  • MAC/IP-based Access Control Lists (ACL)
    
  • Device and Network Segmentation
    
  • DHCP Snooping and DHCP Guarding
    
• Traffic Management & Optimization:
  • Egress Rate Limit
    
  • Flow Control and Storm Control
    
  • Multicast / Broadcast Rate Limiting
    
  • Port Isolation and Port Mirroring
    
  • Jumbo Frames
    
  • Proprietary Loop Protection
    

Management Requirements

• Management Application: UniFi Network
  
• Software Requirement: UniFi Network Application Version 6.2.26 or later