Elenzk Micro Gigabit Fiber Media Converter - Ultra Compact 20km

In this review the Elenzk Micro Gigabit Fiber Media Converter is examined for small-network and CCTV installers who need a compact, reliable fiber-to-Ethernet link. The bottom line: it is an effective, space-saving converter that pairs a 10/100/1000Mbps RJ45 port with a 1310nm single-mode SFP module rated to 20km, and the single biggest reason to buy is its ultra compact aluminum housing and USB-C 5V power option that lets you deploy it where traditional converters will not fit.

Key Features

• Auto sensing 100/1000Base-FX: The SFP fiber port auto detects 100Base-FX or 1000Base-FX so it will adapt to installed fiber equipment without manual configuration.
• Included 20km SM SFP module: The duplex single-mode 1310nm SFP module supports fiber links up to 20km for long-distance runs between buildings or network endpoints.
• Ultra compact footprint: At roughly 3.11in x 1.06in x 0.71in the unit can be tucked into tight enclosures such as IP camera housings or small racks where larger media converters cannot fit.
• USB-C 5V power input: The Type-C power input with included USB cable and adapter allows powering from a PC USB port or a common 5V AC-DC adapter for flexible installation.
• Durable aluminum housing: The IP40 aluminum case provides passive heat dissipation and a sturdy build for prolonged field use.

Who It's For

The Elenzk converter is aimed at network integrators, security camera installers, and small IT teams who need a compact way to bridge copper Ethernet and single-mode fiber without a bulky power brick. Its combination of auto-sensing SFP support and included 20km module makes it suitable for point-to-point links between buildings or remote camera runs.

Those who should look elsewhere include environments that require managed switching features, PoE passthrough, or industrial IP67-rated enclosures; this unit focuses on basic media conversion and physical compactness rather than advanced switching or harsh-environment certification.

Pros & Cons

Pros

• Very small form factor makes it easy to integrate into crowded equipment or camera housings.
• Auto-detecting fiber port removes manual configuration for 100/1000 speeds.
• USB-C 5V power option and included cable/adapter simplify deployments where 5V power is convenient.
• Included single-mode 1310nm SFP module supports up to 20km links out of the box.

Cons

• Not a managed device and lacks PoE, so additional hardware is required for powered cameras or switch functions.
• The IP40 rating is suitable for indoor use but not for wet or fully outdoor exposed installations.

Specifications

Product type	Gigabit fiber media converter
Ethernet port	10/100/1000Mbps RJ45
SFP support	Auto sensing 100/1000Base-FX
Included SFP module	Duplex single-mode 1310nm, 20km
Power input	DC 5V via USB-C (USB cable and adapter included)
Housing	Aluminum, IP40
Dimensions	Approx 3.11in x 1.06in x 0.71in

Our Verdict

The Elenzk Micro Gigabit Fiber Media Converter is a practical choice for installers who need a no-frills, compact fiber-to-Ethernet link with a ready-to-use 20km SFP module and flexible USB-C 5V power. It represents good value for point-to-point or camera feed applications where space is limited, though projects needing PoE or rugged outdoor ratings will require different hardware.

Frequently Asked Questions

Can this unit be powered from a PC USB port?
Yes, the converter accepts DC 5V via the included USB-C cable and can be powered from a PC USB port or a 5V AC-DC adapter.

What fiber range does the included SFP support?
The supplied duplex single-mode 1310nm SFP module is rated for up to 20km links on single-mode fiber.

Does the converter support 100Mbps and 1Gbps SFP modules?
Yes, the SFP port auto detects 100Base-FX or 1000Base-FX so compatible 155M or 1.25G SFP modules can be used.