 "Seagate Desktop SSHD 4 TB Internal SSHD" " Seagate - ST4000DX001 Hard Drives CDW.com
"Get the speed and kick of an integrated solid state drive (SSD) with the massive capacity of a desktop hard drive - all at a surprisingly low price!" 
 "WD Blue WD40EZRZ - hard drive 4 TB SATA 6Gb/s" " WD 6Gb/s Internal Desktop Hard Drives CDW.com
"This hard drive offers stunning capacity and ensures your colors never fade." 