Manufacturer Company: SIA Mikrotīkls
Brand: MikroTik
CRS328-24P-4S+RM is a 28 independent port switch, it has 24 Gigabit Ethernet ports, which offer different power output. options: Passive PoE, low voltage PoE, 802.3af/at (Type 1 “PoE” / Type 2 “PoE+”) with auto-sensing.
The four SFP+ ports provide up to 10 Gbps connectivity options via either optical fiber or Ethernet modules (not included). CRS328-24P-4S+RM comes in a 1U rackmount case with 100-240 V AC 500 W power supply built-in.
Each port can provide up to 30 W with high voltage, and 26 W with low voltage power output. The device has a “Dual boot” feature that allows you to choose between two operating systems - RouterOS or SwOS. If you prefer to have a simplified operating system with only switch specific features, use SwOS. If you would like the ability to use routing and other Layer 3 features in your CRS, use RouterOS. You can select the desired operating system from RouterOS, from SwOS or from the RouterBOOT loader settings.
Features:
- “Dual boot”
 - Non-blocking Layer 2 switching capacity
 - 16K host table
 - IEEE 802.1Q VLAN
 - Supports up to 4K simultaneous VLANs
 - Port isolation
 - Port security
 - Port mirroring of ingress/egress traffic
 - STP / RSTP / MSTP
 - SNMP
 - 10218-byte jumbo frames support
 - IGMP snooping
 - IEEE 802.3ad and static link aggregation
 - 24 Gigabit Ethernet ports
 - 4 SFP+ ports
 - RJ45 serial console port
 - Non-Blocking throughput: 64 Gbps
 - Switching capacity: 128 Gbps
 - Forwarding rate: 95.2 Mpps
 - Maximum power consumption: 44 W (without PoE devices connected)
 - Supports PoE+ IEEE 802.3at/af and 26 V Passive PoE)
 - Temperature based fan control
 - 1U rackmount
 - Selectable power output per port (26 / 53 V)