Industry News丨C-LIGHT

10G Copper SFP Module: A Cost-Effective 10G Network Copper Cable Solution

Jan-16-2026

10G Copper SFP Module is an alternative to optical modules that provides 10G electrical port transmission via RJ45 ports and twisted-pair cable

Application Practices of QSFP28 100G ER4 in Metropolitan Area Networks

Jan-15-2026

The design of the QSFP28 100G ER4 optical transceiver fully considers the transmission requirements of metropolitan area networks (MANs).

10G Copper SFP Transceivers: Technical Features &Application Scenarios

Jan-14-2026

10G Copper SFP Transceiver, commonly referred to as SFP+ DAC or 10Gbase-T SFP+, has become a vital option for short-reach, cost-effective connectivity due to its unique advantages.

100G ER4 vs. LR4: A Transceiver Selection Guide for Long-Haul Applications

Jan-13-2026

100G optical transceivers are core components of high-speed networks, with ER4 and LR4 being two mainstream long-distance solutions.

What is the difference between QSFP and QSFP28?

Jan-12-2026

QSFP and QSFP28 are both transceivers used in data centers and networks, but they differ mainly in speed and intended application.

How to Choose a QSFP28 100G ER4

Jan-09-2026

QSFP28 100G ER4 stands out for its ultra-long transmission distance of 40 kilometers, making it an ideal choice for connecting campus networks, metropolitan area networks, and critical data center nodes

QSFP28 100G ER4 Optical Module:Technologies and Applications for 40km Transmission

Jan-08-2026

QSFP28 100G ER4 optical module, with its compact design and robust 40km transmission capability, has emerged as a core component enabling high-performance network expansion.

Application and Market Prospects of DWDM 100G

Jan-07-2026

DWDM 100G technology is central to optical communication networks, significantly enhancing network capacity and transmission efficiency by carrying multiple 100Gbps channels over a single fiber.

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