LREC9710HF-SFP fiber network card is the second generation simplex communication gigabit fiber optic Ethernet Adapter, based on Intel I350AM2, researched and developed by Shenzhen Lianrui Electronics Co., LTD. Using the latest optical fiber simplex communication technology, effectively guarantee the stability of data transmission, reduce the packet loss rate. Since the simplex communication characteristics of light, this Ethernet Adapter not only achieve physical separation between the internal computer network and the external network, but also ensure that the data between internal and external network sinreal time, reliable, securesimplex communication. With third-party software, LREC9710HF server adapter can be widely used in public security, government systems, militaryandothersecurity departments as well as used in other confidential computer network.