Shenzhen zhangqing electronic limited is founded in 2010 (before that we were called by another name). we are a professional manufacturer on switching power supplies and Power Over Ethernet(PoE) device, including poe injector and poe switch. we are located in shenzhen, one central city of world electronic products area. Our main advantage is our Rearch and Development capacity, Focuing on PoE solution for powering remote device, such as Access Point, IP camera and IP phones. we are dedicated to ...