--- title: Introducing the BF4M Series – Active Optical Connector. description: "Discover the BF4M Connector by Hirose: Active Optical Connector. High-Speed, EMI-Free Signal Transmission." --- [![](https://info.hirose.com/hubfs/New-Hirose-Americas-Logo-2023.png)](https://www.hirose.com/us/) - [PRODUCT](https://www.hirose.com/product/) - [ABOUT US](https://www.hirose.com/us/about/) - [COMPANY NEWS](https://www.hirose.com/us/companynews/) - [CAREERS](https://www.hirose.com/us/recruitment/) - [EVENTS](https://www.hirose.com/us/event/) - [CONTACT](https://info.hirose.com/contact) - [BLOG](https://blog.hirose.com) - [PARTNERS](https://www.hirose.com/corporate/en/about/partner) - [Global](https://www.hirose.com/corporate/ja/) - Region Site ▼ - [USA](https://www.hirose.com/us/) - [EUROPE](https://www.hirose.com/eu/) - [CHINA](https://www.hirose.com/cn/) - [HONG KONG](https://www.hirose.com/hk/) - [TAIWAN](https://www.hirose.com/tw/) - [SINGAPORE](https://www.hirose.com/sg/) - [MALAYSIA](https://www.hirose.com/my/) - [KOREA](http://www.hirose.co.kr/) - [PRODUCT](https://www.hirose.com/product/) - [ABOUT US](https://www.hirose.com/us/about/) - [COMPANY NEWS](https://www.hirose.com/us/companynews/) - [CAREERS](https://www.hirose.com/us/recruitment/) - [EVENTS](https://www.hirose.com/us/event/) - [CONTACT](https://info.hirose.com/contact) - [BLOG](https://blog.hirose.com) - [PARTNERS](https://www.hirose.com/corporate/en/about/partner) - [Global](https://www.hirose.com/corporate/ja/) - Region Site ▼ - [USA](https://www.hirose.com/us/) - [EUROPE](https://www.hirose.com/eu/) - [CHINA](https://www.hirose.com/cn/) - [HONG KONG](https://www.hirose.com/hk/) - [TAIWAN](https://www.hirose.com/tw/) - [SINGAPORE](https://www.hirose.com/sg/) - [MALAYSIA](https://www.hirose.com/my/) - [KOREA](http://www.hirose.co.kr/)   ## **BF4M Series Connector** **Active Optical Connector** - Optical Transmissions Achieved by Simplified Electrical Connections - High Speed Signal Transmissions with No EMI Noise - Highly Flexible Optical Fiber - Long Distance, High Speed and High-Quality Signal Transmissions - Low Power Consumption - Space-Saving and Low Profile Design with 1.5mm Height - Hirose offers a wide array of optical in-line and device to device connection types. 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