MikroTik's RB-CRS328S 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. An 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
Ethernet Ports: 4x 10/100/1000 (Combo Ports)
Hardware Button: Reset, Mode
Max. Power Consumption: 43W
Mounting: Rack-Mount
Operating System: SwOS/ RouterOS (Level 5 Licence)
Operating Temperature: -20°C to 60°C
PoE Input: None
PoE Output: None
Power Input: Power Input: 2x IEC Power Cord (Included) (Dual Internal PSU)
Processor: 1 Core 800MHz 98DX3236
Serial Interface:1x RJ45 Serial Port
SFP Ports: 4x 1.25Gbps ; 4x 10Gbps (Combo Ports)
Supported Voltage Range: 100V-240V
System Memory: 512MB
USB Ports: None
Other: None
Dimensions: 443 x 200 x 44mm