Get on Amazon.com : http://www.amazon.com/gp/product/B00A2IM76K?tag=clothingattes-20

WD Black 4 TB Desktop Hard Drive: 3.5 Inch 7200 RPM SATA III 64 MB Cache 5 Year Warranty -

WD Black high performance 35-Inch SATA hard drives combine 7200 RPM spin speed 64 MB cache and SATA 6 Gbs interface for the ultimate in power computing
High performance electronics architecture features dual processors and bigger faster caches for maximum read and write speeds
StableTrac The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking during read and write operations
4 TB capacity holds up to 800000 digital photos 1000000 MP3 files and 300 hours of HD video
5 year limited warranty
Microsoft operating systems prior to Vista 32-bit operating systems and Mac systems prior to OSX 104 may not support volumes greater than 2TB To recognize the full capacity of this drive you may need multiple partitions Check with the manufacturer to verify your systems compatibility