Router Mikrotik FiberBox Plus Managed Gigabit Ethernet 10/100/1000 IEEE 802.3af

The Mikrotik FiberBox Plus is an outdoor-managed switch/router designed for 10 Gigabit fiber connections and reliable mast or pole deployments. It offers four 10-Gigabit SFP+ ports, a Gigabit RJ-45 Ethernet port for management or PoE-in, a modern ARM CPU and increased RAM compared to previous FiberBox models. The unit accepts a wide input voltage range (24–57 V) and provides low power consumption (maximum 7 W without attachments). Housed in an IP66-rated enclosure, the FiberBox Plus is intended for outdoor use where weather resistance and long-distance fiber connectivity are required.

Advantages

The FiberBox Plus delivers 10 Gigabit SFP+ connectivity in a compact, weather-resistant casing while remaining a cost-effective alternative to higher-end netFiber models. It uses the Marvell 98DX226S switch chip for robust switching performance, includes multiple power options (RJ-45 PoE-in, 2-pin terminal, and DC jack), and combines low maximum power draw with a wide voltage input range for flexible installation scenarios.

Suitable for

• Outdoor mast or pole installations connecting base stations and CPE
• Small to medium campus or campsite networks requiring fiber backhaul
• Point-to-point fiber links to owner’s buildings, kiosks, or service areas
• Environments needing IP66-rated protection (ports, basements, seaports)

Key specifications

• Brand: MikroTik
• Model / MPN: CRS305-1G-4S+OUT (FiberBox Plus)
• Ports: 4 × 10-Gigabit SFP+ ports, 1 × Gigabit RJ-45 Ethernet port
• Power options: PoE-in (RJ-45), 2-pin terminal, DC jack
• Input voltage range: 24–57 V
• Max power consumption (without attachments): 7 W
• Chipset: Marvell 98DX226S
• Ingress protection: IP66
• Color: White

How to use

Mount the FiberBox Plus on a mast, pole or other outdoor structure using appropriate brackets. Connect fiber transceivers to the 10-Gigabit SFP+ ports for uplink or distribution links and use the Gigabit RJ-45 port for management or to receive PoE power. Choose a suitable power method (PoE-in, 2-pin terminal, or DC jack) within the 24–57 V input range. Configure routing and switching via the MikroTik RouterOS or the device’s management interface according to your network plan and apply any required VLANs, firewall rules, and service profiles.

Recommendations

Install the unit in an accessible but protected position on the mast to simplify maintenance. Use quality SFP+ modules compatible with MikroTik devices and ensure cables and connectors are sealed to maintain IP66 protection. For PoE powering, verify the power source meets the voltage range and power budget requirements.