MikroTik CRS328-24P-4S+RM 24-Port Gigabit PoE Switch 4x10G SFP+

The MikroTik CRS328-24P-4S+RM is a 1U rackmount Cloud Router Switch delivering 28 independent switching ports in a single rack unit. Twenty-four Gigabit Ethernet ports support the full range of PoE output modes — Passive PoE, low-voltage PoE, and IEEE 802.3af/at (PoE/PoE+) with auto-sensing — distributing up to 450 W of guaranteed PoE budget across connected devices, with each port capable of supplying up to 30 W. Four SFP+ uplink ports extend backbone connectivity to 10 Gbps over optical fiber or copper Ethernet modules, making the unit equally at home aggregating edge switches or connecting directly to a 10G core. Powered by a built-in 100–240 V AC 500 W supply and an ARM 32-bit CPU running at 800 MHz with 512 MB RAM, the CRS328-24P-4S+RM supports a Dual Boot capability, allowing operators to run either RouterOS (with full Layer 3 routing and advanced feature sets under a Level 5 license) or SwOS (a streamlined switch-only operating system) — selectable at any time without hardware changes. This flexibility makes the platform well suited for network environments that demand both switching density and the option to grow into routed architectures.

Key features & benefits

• 24-Port Gigabit PoE+ with Auto-Sensing — All 24 Ethernet ports support Passive PoE, low-voltage PoE, and IEEE 802.3af/at (Type 1 and Type 2) with auto-sensing, eliminating the need to manually configure power modes. PoE-Out is delivered over mode B pins (4,5+ / 7,8-), and each port can supply up to 30 W regardless of the power output option selected.
• 450 W Guaranteed PoE Budget — The built-in 500 W AC power supply reserves a guaranteed 450 W for connected PoE devices, allocated as 150 W per every 8 Ethernet ports. This structured budget enables predictable deployment of cameras, access points, IP phones, and other powered devices without external injectors.
• 4 × 10 Gbps SFP+ Uplink Ports — Four SFP+ ports provide up to 10 Gbps per port via optical fiber or Ethernet modules (not included), offering high-bandwidth uplinks to core switches or servers and future-proofing aggregation layers in growing network infrastructures.
• Dual Boot: RouterOS or SwOS — Operators can choose between RouterOS for full Layer 3 routing, firewall, and advanced networking features (RouterOS License Level 5), or SwOS for a simplified, switch-centric management experience. The active OS can be changed from RouterOS, SwOS, or directly from the RouterBOOT loader.
• ARM 32-Bit CPU with Dedicated Switch Silicon — The 98DX3236 serves as both the CPU and the switch chip, running at 800 MHz with a single core, backed by 512 MB of RAM and 16 MB of FLASH storage. This integrated architecture supports wire-speed switching across all ports.
• Comprehensive Environmental and Hardware Monitoring — Onboard CPU temperature, PCB temperature, voltage, and current monitors provide real-time visibility into device health, supporting proactive maintenance in data center and wiring-closet deployments. Dual fans provide active cooling for sustained high-load operation.
• 1U Rackmount Form Factor — At 443 × 300 × 44 mm, the CRS328-24P-4S+RM occupies a single rack unit and includes an RJ45 serial console port for out-of-band management, making it straightforward to integrate into standard 19-inch equipment racks.
• Wide Operating Temperature Range — Tested and rated for ambient temperatures from -20 °C to 60 °C with an MTBF of approximately 200,000 hours at 25 °C, the switch is built for reliable continuous operation in varied environments.