Searching ace in Surveillance HDD

[WD64purz-74bwuy0] WD64purz-74bwuy0 Western Digital WD Purple 6TB 3.5" Surveillance HDD 5400RPM 64MB SATA3 175MB/s 180TBW 24x7 64 Cameras AV NVR DVR 1.5mil MTBF 3yrs

WD64purz-74bwuy0 Western Digital WD Purple 6TB 3.5" Surveillance HDD 5400RPM 64MB SATA3 175MB/s 180TBW 24x7 64 Cameras AV NVR DVR 1.5mil MTBF 3yrs

$ 359.00

[8719706025683] 8719706025683 (LS) Seagate 4TB 3.5" SkyHawk 256MB SATA3 Surveillance Optimized, NVR Ready, ImagePerfect, RVS HDD (ST4000VX013) (LS > ST4000VX016)

8719706025683 (LS) Seagate 4TB 3.5" SkyHawk 256MB SATA3 Surveillance Optimized, NVR Ready, ImagePerfect, RVS HDD (ST4000VX013) (LS > ST4000VX016)

$ 269.00