Surveillance storage for peace-of-mind2TB capacity3.5-inch internal hard drive64MB buffer size3-year limited warranty from service..

WD PURPLE 4TB SURVEILLANCE HARD DRIVE Surveillance storage for peace-of-mind 4TB capacity 3.5-inch internal hard drive 64MB buffer size 3 years limited warranty from WD service center..

WD PURPLE 6TB SURVEILLANCE HARD DRIVE Surveillance storage for peace-of-mind 6TB capacity 3.5-inch internal hard drive 64MB buffer size 3 years limited warranty from WD service center        ..