• August 12. 2025

With the increasing demand for high-speed optical communications in data centers, enterprise networks, and carrier networks, 10G BiDi SFP+ optical modules have become a mainstream short-haul optical communication solution due to their single-fiber bidirectional (BiDi) transmission characteristics, fiber resource savings, and flexible deployment. In BiDi optical modules, SC (Subscriber Connector) a...

• August 06. 2025

In the complex network world of data centers, optical modules play a crucial role, efficiently converting electrical and optical signals to ensure stable, high-speed data transmission across fiber optic networks. The color of the small pull tab on an optical module, while seemingly insignificant, hides a wealth of crucial information. Let's uncover its mysteries with Xiaoyi . I. The Core Identific...

• August 04. 2025

In today's rapidly developing communications sector, electrical-to-optical transceivers, as key components for data transmission, are crucial for various network applications due to their performance and applicability. With a precise grasp of market demand and a deep understanding of chip technology, ETU-Link has meticulously crafted a series of copper SFP module transceivers designed to provide u...

• July 28. 2025

In the rapidly developing field of high-speed data communication networks, optical modules play an indispensable and key role. As the connecting "bridge" between switches, routers and other devices, these small and easily replaceable modules are responsible for the conversion between electrical signals and optical signals. From connector types to external dimensions, optical modules show rich dive...

• July 15. 2025

Good News!  ETU-Link: The patent for portable optical module coding box is officially available! Optical modules are the core of communication and carry massive amounts of data. However, traditional coding equipment is bulky, has non-universal interfaces, is complex to operate, and has limited efficiency. Now, this revolutionary product comes with a patent and will bring changes to the indust...

• July 08. 2025

In today's rapidly developing information age, data centers and network communications have an increasing demand for high-speed and stable data transmission. As a key component to meet this demand, 25G optical modules have been widely used in the market. Among them, SFP-25G-SR and SFP-25G-ESR in 25G multimode optical modules are two common types. Let's take a closer look at their differences. 1. 2...

• July 02. 2025

Despite the rapid development of 100G and 400G technologies, 40G QSFP+ optical modules are still the mainstream choice for small and medium-sized data center upgrades due to their high cost-effectiveness and mature ecosystem. Faced with the two major technical routes of QSFP-40G-SR-BD (short-distance bidirectional) and QSFP-40G-LR4-S ( medium- distance single-mode), how to accurately match the nee...

• June 25. 2025

In today's era of data explosion, high-speed and stable data transmission has become a demand of various industries. As an important component of 100G network, the core component 100G QSFP28 dual-fiber optical module has attracted much attention. Today, we will deeply analyze the four mainstream models of 100G QSFP28 dual-fiber optical modules: QSFP28-100G-SR4, QSFP28-100G-LR4, QSFP28-100G-ER...