The CRS328-4C-20S-4S+RM is a 28 independent port switch with a combo group. This device has twenty SFP ports, four SFP+ ports for 10G modules and four combo ports, where you can choose to use SFP or RJ45 ports from the combo group. These ports can also be software selected, so if you have plugged in all eight cables, you can use scripting, to decide which four combo ports will be active.

The device comes in a 1U rackmount case with two 100-240 V power supplies with failover functionality. A RJ45 console port is available for management and debugging, and a mode button can be customised to execute any RouterOS commands.

The device has a “Dual boot” feature that allows you to choose between two operating systems - RouterOS or SwOS.

Specifications

Details
Product code	CRS328-4C-20S-4S+RM
Architecture	ARM 32bit
CPU	98DX3236
CPU core count	1
CPU nominal frequency	800 MHz
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

Details
Number of AC inputs	2
AC input range	100-240
Max power consumption	43 W
FAN count	2

Ethernet

Details
Ethernet Combo ports	4

Fiber

Details
SFP ports	20
SFP+ ports	4

Peripherals

Details
Serial console port	RJ45

Other

Details
CPU temperature monitor	Yes
Voltage Monitor	Yes
Mode button	Yes

Certification & Approvals

Details
Certification	CE, EAC, ROHS

MIKROTIK Cloud Router Switch 4x1000Mbps SFP Combo + 20x1Gbps SFP + 4x10Gbps SFP+, Fémházas, Rackes - CRS328-4C-20S-4S+RM