CRS112-8P-4S-IN is an eight Gigabit RJ45 port PoE switch with autosensing 802.3af/at PoE/PoE+ and Passive PoE power output options, and four SFP ports enable optical fiber connectivity options to handle uplinks of up to 1 Gbps.
The CRS112-8P-4S-IN has 12 independent switching ports. The power supply (28 V 3.4 A) is already included in the package. On the back of the enclosure, there is a secondary DC connection that supports a 48-57 V power supply (not included, but available separately - product codes 48POW (1.46A 70W) and 48V2A96W (2A 96W)). If a 48-57 V DC input is used, the CRS112-8P-4S-IN can power 802.3af/at devices (the unit will automatically detect and provide correct power to devices). The maximum current per port is 1 A when the input voltage is 18-28 V and 450 mA when the input voltage is 48-57 V. The total current limit is 2.8A@24V and 1.4A@48-57V. PoE-Out is routed using mode B's 4,5 (+) and 7,8 (-) pins.
Provides 8 Gigabit Ethernet ports with PoE output to power connected devices.
Adds flexible fiber uplink options for long distance and high speed connectivity.
Can run both RouterOS and SwitchOS for flexible network management.
Supports Passive PoE input and DC jack powering for versatile deployment.
The MikroTik CRS112-8P-4S-IN (product code CRS112-8P-4S-IN) is a powerful PoE-enabled switch built on a MIPSBE architecture with a single-core 400 MHz QCA8511 CPU, designed for small office and enterprise networks. It features 128 MB RAM and 16 MB FLASH storage, running RouterOS with Level 5 license, and operates in temperatures from -20°C to 60°C. The switch provides 8 Gigabit Ethernet ports with 802.3af/at PoE output (Ether1–Ether8) and 4 SFP ports for fiber uplinks. Powering options include DC jack inputs (18–28 V / 48–57 V), delivering up to 1 A per port depending on voltage, with a maximum total output of 2.8 A (24 V) or 1.4 A (48–57 V) and a maximum power consumption of 160 W. Additional features include an RJ45 serial port and PCB temperature monitoring, making it ideal for reliable PoE-powered deployments.