Shenzhen Grandtop Electronics Co., Ltd was founded in 2005, certified with ISO9001, ISO13485& IATF16949. Grandtop is a professional manufacturer concentrated on PCB Assembly (SMT, DIP, AI) and electronic product final assembly (EMS) in the top market for global customers on different industries, such as Medical Equipment, Industrial Control, Automatic Control, Robotic Control, IOT, Smart Home Application.

One Chassis Technology Company Ltd is a leading provider of 19" rackmount computers with over 15 years experience. Our industrial chassis is focused on 19" Rackmount chassis with 1U, 1.5U, 2U, 3U, 4U, 6U. One Chassis products series including rackmount chassis, wall-mount chassis, Nas Chassis, ITX chassis and the accessories as sliding rail and industrial power supply.

Founded in 2004, specialized in R &D of Video & Audio Transmission, Caratar has grown to become a leading A. V. And HDMI accessories brand in China. Providing residential and commercial solutions with a wide range of products to meet any A. V. Needs. From HDMI splitters and HDMI extenders to HDMI switches, HDMI audio extractors to HDMI Matrix, or Video wall processors, we have an easy solution for any custom A. V application.

Founded in 2011, Wuhan Xstrive Technology Co., Ltd. Has become a leading company in audio and video technology. Located in the technologically savvy Wuhan University Science Park, Xstrive has rapidly established itself within the industry with its cutting-edge research in multimedia technology. Positioned as a professional audio and video software developer, Xstrive is an innovative high-tech team focused on multimedia software design, development, implementation, and testing. The company is committed to providing comprehensive hardware and software solutions to organizations and businesses worldwide, offering full-value service across the industry chain, including product planning, maintenance, and custom development. Founded in 2011, Xstrive Technology boasts 80% of its management team with bachelor's degrees or higher, 90% of its employees are software development engineers, and its core technical staff boasts over 10 years of experience in large-scale enterprise and government information technology projects. In 2015, the company received National High-Tech Enterprise certification; In 2018, its R&D center was designated the "Hubei Province Audio and Video Engineering Technology Research Center. " In 2020, the company's annual revenue exceeded 100 million yuan, and its business covers over 30 provinces, municipalities, and autonomous regions nationwide. Over the past decade since its establishment, the company has successfully served over 500 enterprises and institutions, including:

General Vision Electronics Co., Ltd. has owned the advanced digital video technique in the world. The main products include DVR cards, DVR, high speed dome cameras, embedded DVR, network video server and so on, especially the soft compression crv cards. The company possesses a strong technical team which is entirely devoted to new products research and development. Each branch of the company has its own excellent marketing, managerial and technical staffs. Our agents and engineers can be found everywhere in China mainland, and our products are extensively sold to many countries including Asian, Europe, north & south America and so on. If you want to lean more information about us and our products, please visit our website.

Hengtong Digital CO., Ltd. is a leading company and one of the largest factories in the field of video surveillance systems on China market. We professionally manufacture the video capture/compress cards or DVR series products in our factory, and we develop the software (includes the remote software to realize the network solution) by our own programmers. During these years, we have exported a lot of our video capture boards (or DVR series) abroad.

Macro-Video Technologies Co., Ltd., is a professional DVR card manufacturer.