---
title: MikroTik GPEN Smart PoE Injector with SFP
date: 2024-09-26T21:35:59Z
modified: 2026-05-05T16:47:26Z
permalink: "https://tech.co.za/product/mikrotik-gpen-smart-poe-injector-with-sfp/"
type: product
status: publish
excerpt: "• Interface management and monitoring\\n• GPEN link fault detection\\n• VLAN support\\n• SNMP reporting\\n• Basic traffic shaping"
wpid: 510136
product_brand:
  - Mikrotik
product_type:
  - simple
product_visibility:
  - featured
  - outofstock
product_cat:
  - Networking
featured_image: "https://tech.co.za/wp-content/uploads/2024/09/smart-PoE-injector-2.jpg"
---

**Specifications**
Product code: GPEN21
Switch chip model: 88E6341
Input voltage: 12 – 57 V, Passive or 802.3af/at
Tested ambient temperature: -20°C to 70°C

**Powering**
Number of DC inputs: 2 (DC jack, PoE-IN)
DC jack input Voltage: 12-57 V
Max power consumption: 30 W
Max power consumption without attachments: 3 W
Cooling type: Passive
PoE in: 802.3af/at
PoE in input Voltage: 12-57 V

**PoE-out**
PoE-out ports: Ether2
PoE out Passive: PoE up to 57V
Max out per port output (input 18-30 V): 850 mA
Max out per port output (input 30-57 V): 625 mA
Max total out (A): 850 mA

**Ethernet**
10/100/1000 Ethernet ports: 2
Number of 1G Ethernet ports with PoE-out: 1

**Fiber**
SFP ports: 1

**Other**
Output Voltage: Yes, Passive PoE up to 57 V
Mode button: Yes