Established in 1999,Shenzhen Chonke Co.,Ltd , which has his own factory, has accumulated enough experience of camera production. From 2005, Chonke tried popularizing his own brand named "CHONKE", translating the advantage of technic and cost into strong cost performance of brand. Based on his own opinion about security industry, Chonke popularized the following digital security products in succession: Camera, Digital DVR, Stand alone DVR, DVR Card, Annunciator, Web video server and so on, to satisfy customers and serve society. Especially the DVR Card, which can support at most 60 channels real time monitoring. Our service promise is: Quality guarantee for 2 years, and maintenance for life. And our service tenet is: Cut off all the quality problem before products leave factory, no needing service is the best service.