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Wd Purple Surveillance 1tb Hard Drive Disk Sata Iii 64m 3.5" Hdd Hd Harddisk For Security System Video Recorder Dvr Nvr Cctv - Hard Disk Drive - AliExpress
Western Digital Purple 5400RPM 4TB 3.5 Inch Surveillance Hard disk #WD40PURZ/WD40EJRX