MikroTik CRS354-48P-4S+2Q+RM – 48-Port PoE+ Layer 3 Managed Switch

The MikroTik CRS354-48P-4S+2Q+RM is a powerful Layer 3 PoE+ switch tailored for enterprise networks, surveillance infrastructure, and office environments that require power and data over a single cable. This unit delivers 48× Gigabit Ethernet ports with 802.3af/at PoE+, 4× 10G SFP+ uplinks, and 2× 40G QSFP+ ports, packed in a 1U rackmount metal enclosure.

It offers robust switching capabilities, dual boot (RouterOS and SwOS), and enough power budget to run dozens of high-performance access points, IP cameras, and other PoE devices simultaneously.

Key Specifications

General

• Model: CRS354-48P-4S+2Q+RM
• Series: Cloud Router Switch (CRS)
• Type: Layer 3 PoE+ Managed Switch
• Form Factor: 1U Rackmount
• Operating System: Dual boot – RouterOS (License Level 5) or SwitchOS
• Use Case: Enterprise, surveillance, hospitality, managed PoE deployment

Hardware

• CPU: QCA9531 (650 MHz)
• RAM: 64 MB
• Storage: 16 MB Flash
• Switch Chipset: Marvell Prestera family
• PoE Controller: Integrated for per-port power control

Ports

• 48 × Gigabit Ethernet Ports with PoE+ (802.3af/at)
• 4 × 10G SFP+ Ports
• 2 × 40G QSFP+ Ports
• 1 × RJ45 Serial Console Port

PoE Output

• Standard: 802.3af/at (PoE+)
• Per-Port Max Output: Up to 30W
• Total PoE Budget: 750W
• Voltage Range: 26 – 57V DC (recommended 48 – 57V for full output)

Performance

• Switching Capacity: 168 Gbps
• Forwarding Rate: 126 Mpps
• Non-Blocking Throughput: 84 Gbps
• Latency: Sub-1 ms
• L2 and L3 Switching Features: VLAN, ACL, DHCP snooping, Routing (basic)

Power & Environmental

• Power Input:
  • AC input via dual hot-swap power supplies
  • 100 – 240V AC (IEC connector)
• Redundancy: Dual hot-swappable power supplies (included)
• Max Power Consumption: Up to 800W with full PoE load
• Cooling: Intelligent active cooling
• Operating Temperature: -20°C to 60°C

Software Features

• RouterOS (Level 5 license):
  • Static routing, firewall, RSTP, scripting
  • Advanced VLAN control and monitoring
• SwOS:
  • Lightweight switch management interface
  • Port isolation, VLAN configuration, link aggregation
• Dual Boot Support: Seamless switching between RouterOS and SwOS

Physical Specifications

• Dimensions: 443 × 382 × 44 mm
• Weight: Approx. 4.5 kg
• Chassis: 1U metal, rack-mountable (ears included)
• LED Indicators: Per-port activity and PoE status

Package Contents

• 1 × CRS354-48P-4S+2Q+RM Switch
• 2 × Hot-swappable AC Power Supplies
• 1 × IEC Power Cord
• 1 × Rackmount Kit
• 1 × Quick Start Guide

Use Cases

• High-density PoE access switch for offices
• IP surveillance camera deployments
• Wireless AP and VoIP phone powering
• Smart buildings and IoT deployments
• Aggregation switch for edge PoE networks

Meta Description

MikroTik CRS354-48P-4S+2Q+RM is a 1U rackmount PoE+ switch with 48× Gigabit ports, 4× 10G SFP+ uplinks, and 2× 40G QSFP+ ports. Features dual OS boot, 750W PoE budget, and dual power supplies—ideal for enterprise and surveillance networks.

Datasheet