Topstar Technology Industrial Co., Ltd. is a professional fiber optical module manufacturer integrating R&D, production, sales and after service. We own a 100,000-class dust-free workshop covering an area of more than 3,000 square meters. Our team currently have 30 technical R&D personnels a...

The fourth generation of mobile connectivity started to make waves in the late 2000s. 4G made mobile internet speeds up to 500 times faster than 3G and allowed support for HD TV on mobile, high quality video calls, and fast mobile browsing. The development of 4G was a massive feat for mobile technol...

Cisco is seeing a tough climate for its networking business, but it's reporting better news on the AI and security fronts. After days of speculation, Cisco today announced a restructuring plan that will see the networking vendor cut 5%, or about 4,200 jobs, from its 84,900 workforce as it plans to c...

40G QSFP SR4 and 40G QSFP BiDi at a Glance Before we go any further, it’s better to first obtain some basic information about 40G QSFP SR4 and 40G QSFP BiDi transceiver. As they both used to support short-range (SR) 40G connectivity, the major difference lies in the protocols, namely ...

Introduction to Fiber Optic Patch Panel As we all know, fiber optic patch panel is a device used to connect two fiber optic connectors in the fiber optic cabling system. Due to the variety of fiber connectors, there is also a variety of fiber optic patch panel(Read more about adapters here!). Why do...

QSFP28 SR4 QSFP28 SR4 is also a parallel optical transceiver. It offers four channels for transmitting and four channels for receiving, each capable of 25Gb/s operation for an aggregate data rate of 100Gbps on 100 meters of multimode fiber, which is similar to the CFP LR4. However, the QSFP28 SR4 do...