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Product ID: CRS328-4C-20S-4S+RM
Supplier: Mikrotik
Description: High-Density Fiber Smart Switch with Combo Ports and 10G SFP+ Uplinks (Rackmount)

The CRS328-4C-20S-4S+RM is a high-capacity fiber-focused smart switch designed for enterprise edge, Small to Medium Business (SMB) networks, and aggregation deployments that require dense SFP connectivity with flexible uplink options. It features 20 SFP cages, four 10G SFP+ cages, and four combo ports that can operate as either Gigabit Ethernet or SFP, providing exceptional flexibility for mixed copper and fiber environments.

Powered by an ARM-based architecture with an 800 MHz CPU and 512 MB of RAM, the CRS328-4C-20S-4S+RM supports demanding switching workloads and advanced management features. With dual boot support (RouterOS Level 5 or SwOS), it can be deployed as a simple managed switch or as a more advanced platform supporting VLANs, monitoring, ACLs, and light routing. Its 1U rackmount metal chassis makes it ideal for network closets, IDFs, and data center edge installations.

For improved reliability in critical environments, the switch includes dual internal power supplies, ensuring continued operation in the event of a power supply failure.

Key Features

  • 20× SFP cages for fiber connectivity
  • 4× 10G SFP+ cages for high-speed uplinks
  • 4× combo ports (Gigabit Ethernet or SFP)
  • ARM-based CPU (800 MHz) with 512 MB RAM
  • Dual boot support (RouterOS Level 5 or SwOS)
  • Certification CE, EAC, ROHS
  • 1U rackmount metal chassis
  • Dual internal power supplies included for redundancy
  • Includes: 2 - IEC cords, Rack ears, K10 Screw kit

Spec Sheet
Instruction Manual
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