4 Camera CCTV Systems. Complete DIY 4 Channel Surveillance Systems. Every System includes 4 Security Cameras, CCTV DVR, CCTV Cables and Camera Power Supply. By buying whole CCTV Package online you can save up to 40%. We have most popular camera systems. If you can't find what you need, we have also Customizable CCTV Sustems. You can build your own CCTV Package selecting from few different cameras. If you still need more customization, you can always email us or call. We can build fully customized CCTV System that fits your needs.