MikroTikCRS328-4C-20S-4S+RM

Cloud Router Switch - 20x SFP, 4x Combo Ports, 4x 10G SFP+, 1U Rackmount, RouterOS L5

The MikroTik CRS328-4C-20S-4S+RM Cloud Router Switch is a high-capacity Layer 3 managed switch built for enterprise and ISP fiber environments. It features a powerful mix of 20x 1G SFP ports, 4x combo ports (RJ45/SFP), and 4x 10G SFP+ uplinks, delivering maximum flexibility in a compact 1U rackmount form factor.

Features

Designed for large-scale fiber switching, the CRS328-4C-20S-4S+RM is ideal for aggregation layers, core switching, or network distribution in fiber-heavy deployments. With combo ports, you can choose between RJ45 copper or SFP fiber without sacrificing ports, and the SFP+ cages allow for high-speed 10G uplinks to your backbone or servers.

Advanced Options

The unit supports RouterOS Level 5 for advanced routing, firewall, and tunneling functions, as well as SwOS for lighter Layer 2 use cases. It runs on a 98DX3236 switch chip and 800 MHz ARM CPU, backed by 512 MB of RAM, ensuring stable performance even in demanding enterprise setups.

Product Key Features

• • 20x 1G SFP ports, 4x combo (RJ45/SFP), and 4x 10G SFP+ ports for flexible connectivity

  • Powered by 800 MHz CPU with 512 MB RAM for robust Layer 3 switching

  • Dual boot: RouterOS Level 5 and SwOS for customizable management

  • Ideal for enterprise data centers, ISP distribution, and fiber-rich networks

  • Standard 1U rackmount metal chassis with internal power supply

  • Quiet operation with passive + optional fan cooling

Reliability & Performance

The CRS328 combines MikroTik's software flexibility with enterprise-grade hardware. Its internal AC power supply, rackmount design, and passive + optional fan cooling ensure reliability in server rooms or NOCs. Combo ports eliminate the need for media converters, reducing deployment complexity while increasing uptime and port versatility.

Key Features :

• • 20x 1G SFP fiber ports

  • 4x combo ports (RJ45/SFP) - use copper or fiber

  • 4x 10G SFP+ uplink ports

  • Dual boot: RouterOS Level 5 and SwOS

  • 800 MHz ARM 32-bit CPU

  • 512 MB RAM, 16 MB flash storage

  • 1U rackmount metal chassis

  • Internal AC power supply

  • Passive + optional active cooling

  • VLAN, QoS, ACL, L3 static routing, and firewall support

Specification	Details
Model Number	CRS328-4C-20S-4S+RM
Product Type	Cloud Router Switch (Managed L3)
CPU	800 MHz ARM 32-bit
RAM	512 MB DDR3
Storage	16 MB Flash
Operating System	RouterOS Level 5 / SwOS
SFP Ports	20 × 1G SFP
Combo Ports	4 × (RJ45 or 1G SFP shared)
SFP+ Ports	4 × 10G SFP+
Ethernet Ports (RJ45)	Up to 4 via combo ports
Switching Capacity	64 Gbps
Forwarding Rate	95.2 Mpps
Power Supply	Internal 100-240V AC
Power Consumption	~43 W max
Cooling	Passive with optional fan
Dimensions	17.4" x 8.2" x 1.7" (443 x 209 x 44 mm)
Form Factor	1U Rackmount
Operating Temperature	-20°C to +60°C (-4°F to +140°F)