Buy from Amazon : http://www.amazon.com/gp/product/B00JBKH3FU?tag=izanami-20
iPower Security SCCMBO0001-500G 4-Channel 500GB Hard Disk Full D1 DVR Security Surveillance
4-Channel DVR with full real-time D1 resolution 500GB hard drive included
4 - 850TVL cameras with up to 70 feet night vision
4 60 pre-made cables available in black or white
1 12V DC 2000mA Power Adaptor 110V-240V AC Input
Power Cord Lead DC 1 to 4