The majority of our efforts are concentrated into supplying DVR surveillance items such as CCTV cameras, DVR cards, and customized DVR Servers at wholesales prices. We also are an authorized distributor for all SanDisk products, including but not limited to Flash Memory Cards and Readers. We have been in business since 2002. We are the highest rated CCTV seller on eBay, with a positive rating of over 99. 5% , and over 25, 000 feedbacks. We have an "A" rating with the better business bureau. Please contact us if you need more information.