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 selected via software, so if you have all eight cables connected, you can use scripting to decide which four combo ports will be active.

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

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

Technical Specifications
 

• 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
• RAM size 512 MB
• Storage size 16 MB
• Storage type FLASH
• MTBF Approximately 200,000 hours at 25C
• Tested ambient temperature from -20°C to 60°C
• Powering Number of AC inputs 2, AC input range 100-240, Max power consumption 43 W, Cooling type 2
• Ethernet Combo ports 4