MikroTik CRS520-4XS-16XQ-RM – Ultra-Fast 100 GbE Layer 3 Switch

The MikroTik CRS520‑4XS‑16XQ‑RM Layer 3 Switch is a high-performance, enterprise-grade Layer 3 switch tailored for data centers, high-performance networks, and ISP cores. Featuring 16× 100G QSFP28, 4× 25G SFP28, and 2× 10G RJ45 ports, it is designed to provide maximum throughput, flexible interface options, and hardware-based routing offload.

With a powerful quad-core 2 GHz ARM CPU, 4 GB RAM, and dual redundant hot-swappable PSUs, it ensures reliable uptime in demanding environments.

General

• Model: CRS520-4XS-16XQ-RM
• Series: Cloud Router Switch (CRS)
• Form Factor: 1U Rackmount
• Operating System: RouterOS v7 (License Level 5)
• Use Case: Enterprise backbone, ISP core, data center switching, high-throughput routing

Hardware

• CPU: ARM 64-bit AL52400, quad-core at 2 GHz
• RAM: 4 GB DDR4
• Storage: 128 MB NAND
• Switch Chipset: Marvell 98CX8410
• Cooling: 4× hot-swappable intelligent fans

Ports

• 16 × 100G QSFP28
• 4 × 25G SFP28
• 2 × 10G RJ45 (10M/100M/1G/2.5G/5G/10G)
• 1 × RJ45 Serial Console Port

Performance

• Switching Capacity: 200 Gbps
• Forwarding Rate: 138 Mpps (64-byte packets)
• Hardware Offloading: Yes (Layer 3 routing acceleration, ACLs, jumbo frames)
• Advanced Routing Protocols: OSPF, BGP, MPLS (via RouterOS)

Power & Environmental

• Power Inputs: Dual AC (hot-swappable, 100–240V AC)
• Redundancy: Yes, with 2 hot-swappable power supply units
• Max Power Consumption: ~150 W (220 W with both PSUs installed)
• Cooling: 4× Hot-swap fans with temperature control
• Operating Temperature: -20°C to +50°C

Software Features

• RouterOS v7 Support:
  • Layer 3 dynamic routing (OSPF, BGP, MPLS)
  • VLAN, ACL, QoS, firewall
  • VRRP, bonding, bridging, scripting
  • SNMP, SSH, Web UI, NetFlow
• L3 Hardware Offload: Supported for routing acceleration
• Routing Table Capacity: Supports large-scale route sets

Physical Specifications

• Dimensions: 443 × 200 × 44 mm (1U height)
• Weight: Approx. 3.6 kg
• Chassis: Industrial-grade metal design
• Mounting: Rackmount ears and rear support included

Use Cases

• Core switch for 100G and 25G data center deployments
• ISP peering edge and routing platforms
• High-throughput backbone for cloud computing and storage
• Multimedia or content delivery infrastructure requiring low-latency transport

Meta Description

MikroTik CRS520‑4XS‑16XQ‑RM Layer 3 Switch is a 1U rackmount switch with 16× 100G QSFP28, 4× 25G SFP28, and 2× 10G RJ45 ports, powered by a quad-core 2 GHz CPU, 200 Gbps switching, dual hot-swappable PSUs, and full Layer 3 hardware offload—ideal for data centers and high-speed core networks.

Datasheet