MikroTik GPEN21 - Smart Power over Ethernet injector, White

The MikroTik GPEN21 is a software-controlled network repeater and PoE injector for uplink equipment. It provides a total PoE budget of 30W through its single output port. The device supports Gigabit Ethernet speeds of 10, 100, and 1000 Mbit/s. A dedicated SFP slot allows for fiber-optic uplinks alongside standard copper connections. The unit outputs 57V and accepts an input voltage range of 12–57V. It features one RJ45 input and one RJ45 output for network expansion.

The switch offers web-based management and supports SNMP v1/v2c protocols. Network features include VLAN support for up to 250 entries and Access Control Lists with 32 rules. Quality of Service (QoS) and rate-limiting options help manage traffic priority and bandwidth allocation. The unit is housed in a white, wall-mountable enclosure suitable for communications cabinets or flat surfaces. It is compatible with MikroTik GPeR and netPower series devices running the SwOS Lite operating system. Integrated LEDs include a ‘Dark Mode’ to reduce light output in residential settings.

• Jumbo frame support up to 10,222 bytes — facilitates efficient transfer of large data packets.
• MAC address table with 2,000 entries — maintains a record of connected hardware for efficient local traffic routing.
• Full-duplex and auto-negotiation support — automatically optimizes link speed and communication modes.
• Broadcast storm control — prevents network degradation caused by excessive broadcast traffic on the local segment.
• Physical reset button — allows for manual restoration of factory settings.
• Upgradable firmware — enables software updates to maintain security and operational standards.
• Autosensing technology — detects the requirements of connected equipment to ensure proper power and data delivery.