WD Purple WD20PURX 2TB Surveillance 3.5" Internal SATA Hard Drive
WD Purple 2TB Surveillance Internal Hard Drive Disk 3.5" 64M Cache SATA III 6Gb/s 2T 2000GB HDD HD Harddisk for CCTV DVR NVR - buy at the price of $58.21 in aliexpress.com
WD20PURZ: WD Purple Surveillance Hard Drive 2 TB at reichelt elektronik