BI-TEK (诚勤科技)有限公司成立于1999年，业务范围主要是研究，设计，开发，制造和销售密闭网络传输设备的脉冲变压器，滤波器，共模扼流圈等磁性部件。 BI-TEK (诚勤科技)最新产品是适用于VoIP和PoE应用的10 / 100BASE-T，10/100 / 1000BASE-TX和2.5G / 10G BASE-T变压器模块的lan磁模块，符合802.3at标准。

BI-TEK Technology Co., Ltd was established in 1999, the business scope was mainly the research , the design, the development, the manufacture and the sale confined network transmission facility the pulse transformer, filter, common mode choke and so magnetism parts.The newest products are lan magnetic modules for 10/100BASE-T, 10/100/1000BASE-TX and 2.5G/10G BASE-T transformer modules for VoIP and PoE applications and conforms to the 802.3at standard.