Industrial 8-Port Gigabit Switch with 4 RJ45 + 4 SFP DIN-Rail IP40

Industrial 8-Port Gigabit Switch with 4 RJ45 + 4 SFP DIN-Rail IP40

Overview

The LNK-GY404G-SFP is a high-performance industrial Gigabit Ethernet switch featuring 4 RJ45

copper ports and 4 SFP fiber slots, providing maximum flexibility for mixed media networking.

Designed for harsh industrial environments, it operates reliably in a -40°C to +80°C temperature

range with IP40-rated aluminum housing.
With its redundant ring protocol, this switch ensures network recovery within 20ms, maintaining

continuous communication in critical applications such as intelligent transportation, power automation,

and security monitoring. It supports IEEE 802.3 standards, auto MDI/MDI-X, and plug-and-play

setup—ideal for stable, maintenance-free operation in field deployments.

Features

8 Gigabit ports: 4 × RJ45 + 4 × SFP for flexible fiber/copper deployment

Full Gigabit throughput (10/100/1000Mbps) with auto-negotiation

Redundant ring network support with recovery <20ms

Supports IEEE 802.3, 802.3u, 802.3z, 802.3x, 802.1Q VLAN, and QoS

Wide 24VDC (18–36V) power input, reverse polarity protection

Industrial-grade IP40 aluminum alloy enclosure

-40°C to +80°C operating temperature for extreme conditions

Supports DIN-Rail or wall-mount installation

EMI/EMS protection: ESD, surge, vibration, and shock resistant

Compact size, fanless design, and low power consumption

Technical Indexes

Established in 2001& headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading Fiber Optic Communication and CCTV Security Transmission product manufacturer in China. Our main products include active equipments including fiber media converters, CCTV fiber converters, CCTV over Ethernet Converters (HD-SDI over Ethernet, HDMI over Ethernet, Power over Ethernet), etc. With rich experience in providing high quality products in telecom and CCTV business, E-link has a large manufacturing base in Shenzhen, able to deliver cost-effective solutions to serve our customers successfully.

E-Link Quality:

• ISO9001 Quality System

• Full-Spectrum environment and electrical testing of all product design

• 48 hours aging test before delivery

• Qualified CE, RoHS, FCC

Since the launch of our products on the domestic market and international market, we have won a good reputation for our high quality products and sincere services. Our products are widely applied to network systems of Telecom, Radio and Television, Public Security, Bank ,ect. To be in line with different needs of different customers, we have people to trace the latest market information so as to keep our products competitive and vital.

Our knowledgeable sales, technical support and engineering staff are dedicated to understanding your requirements and designing products & solutions to meet your needs. We shall be pleased to provide you fiber optical network products with our best price, superior quality and fast delivery.