The MikroTik CRS328-4C-20S-4S+RM is a 1U rackmount fibre switch with 20 SFP ports, 4 SFP+ ports for 10G and 4 combo ports that take either SFP or RJ45.

With both sides of a combo port cabled, you can choose in software or by script which one is active. It has two 100-240 V power supplies with failover, an RJ45 console port and a mode button that can run any RouterOS command. It dual-boots RouterOS (level 5) or SwOS.

Key features

  • 20 x SFP ports
  • 4 x SFP+ ports (10G)
  • 4 x combo ports, Gigabit Ethernet or SFP
  • Marvell 98DX3236 dual-core CPU at 800 MHz, 512 MB RAM
  • Two redundant 100-240 V AC power supplies, 43 W maximum
  • RJ45 serial console, 2 fans

In the box

  • K-54 kit
  • Rack ears
  • 2 x IEC power cords

Description

The MikroTik CRS328-4C-20S-4S+RM is a 1U rackmount fibre switch with 20 SFP ports, 4 SFP+ ports for 10G and 4 combo ports that take either SFP or RJ45.

With both sides of a combo port cabled, you can choose in software or by script which one is active. It has two 100-240 V power supplies with failover, an RJ45 console port and a mode button that can run any RouterOS command. It dual-boots RouterOS (level 5) or SwOS.

Key features

  • 20 x SFP ports
  • 4 x SFP+ ports (10G)
  • 4 x combo ports, Gigabit Ethernet or SFP
  • Marvell 98DX3236 dual-core CPU at 800 MHz, 512 MB RAM
  • Two redundant 100-240 V AC power supplies, 43 W maximum
  • RJ45 serial console, 2 fans

In the box

  • K-54 kit
  • Rack ears
  • 2 x IEC power cords

Specifications

General

Architecture ARM 32bit
CPU 98DX3236
CPU core count 2
CPU nominal frequency 800 MHz
Switch chip model 98DX3236
Dimensions 443 x 194 x 44 mm
RouterOS license 5
Operating System RouterOS / SwitchOS
Size of RAM 512 MB
Storage size 16 MB
Storage type FLASH
MTBF Approximately 200'000 hours at 25C
Tested ambient temperature -20°C to 60°C

Powering

Number of AC inputs 2
AC input range 100-240
Number of PSU slots 2
Frequency (Hz) 50-60
Max power consumption 43 W
Cooling type 2 fans

Ethernet

Ethernet Combo ports 4

Fiber

SFP ports 20
SFP+ ports 4

Peripherals

Serial console port RJ45

Other

CPU temperature monitor Yes
Voltage Monitor Yes
Mode button Yes

Certification & Approvals

Certification CE, EAC, ROHS

Datasheet (PDF)