Hard Drives
Surveillance-grade hard drives are purpose-built for the continuous write demands of NVR recording. Standard desktop or enterprise drives are not designed for 24/7 video recording and will fail prematurely in NVR systems.
10 products in this category
Western Digital
WD Purple 2TB
The WD Purple 2TB surveillance hard drive is purpose-built for 24/7 NVR + DVR continuous video recording with AllFrame AI technology, supporting up to 64 cameras. The entry-tier capacity for Chicago small-business + HOA single-camera-position NVR deployments — typical 30-day retention at 1080p / 4-camera builds.
Western Digital
WD Purple 4TB
The WD Purple 4TB surveillance hard drive is the standard small-business capacity in Western Digital's WD Purple line — purpose-built for 24/7 NVR + DVR continuous video recording with AllFrame AI technology, supporting up to 64 cameras. The most-installed capacity for Chicago small-business + HOA 8-camera NVR deployments — typical 30-day retention at 1080p / 8-camera builds or 4-camera 4K builds.
Western Digital
WD Purple 6TB
The WD Purple 6TB surveillance hard drive — 24/7 NVR-rated with AllFrame AI technology, 256 MB cache, 180 TB/year workload, supports up to 64 cameras. The Chicago choice for HOA full-coverage 16-camera NVR builds at 1080p (paired with the ARN-1610S dual-bay NVR for 12 TB total) or 8-camera 4K NVR builds with 30+ day retention.
Western Digital
WD Purple 10TB
The WD Purple 10TB surveillance hard drive — 24/7 NVR-rated with AllFrame AI technology, 256 MB cache, 180 TB/year workload, supports up to 64 cameras. The Chicago choice for mid-business 16-camera 4K NVR deployments and HOA full-coverage with 60+ day extended retention.
Western Digital
WD Purple 14TB
The WD Purple 14TB surveillance hard drive — 24/7 NVR-rated with AllFrame AI technology, 512 MB cache, 360 TB/year workload, supports up to 64 cameras. The Chicago choice for mid-enterprise 32-camera NVR deployments and 16-camera 4K NVR with 90+ day extended retention requirements.
Western Digital
WD Purple 18TB
The WD Purple Pro 18TB surveillance hard drive — Pro-tier 24/7 NVR with AllFrame AI, 512 MB cache, 550 TB/year workload, supports 64+ cameras with AI metadata. The Chicago choice for enterprise 32-64 camera AI NVR deployments at federal facilities, hospitals, university campuses, and industrial sites with 90-180 day retention.
Western Digital
WD Purple 22TB
The WD Purple Pro 22TB surveillance hard drive — flagship 24/7 NVR with AllFrame AI, 512 MB cache, 550 TB/year Pro workload, supports 64+ cameras with AI metadata. The Chicago choice for flagship enterprise 64-channel AI NVR deployments at federal campuses, hospital systems, university districts, and stadium-class venues with 180-day+ retention.
Seagate
Seagate SkyHawk 4TB
The Seagate SkyHawk 4TB surveillance hard drive — purpose-built for 24/7 NVR / DVR continuous video recording with ImagePerfect firmware, supports up to 64 cameras at 1080p / 4K. The standard small-business surveillance drive at 4 TB for Chicago NVR deployments — Seagate alternative to WD Purple at the standard small-business capacity tier.
Seagate
Seagate SkyHawk 10TB
The Seagate SkyHawk 10TB surveillance hard drive — 24/7 NVR with ImagePerfect firmware, 256 MB cache, 180 TB/year workload, supports up to 64 cameras. The Chicago choice for mid-business 16-camera 4K NVR deployments and HOA full-coverage with 60+ day extended retention. Seagate alternative to WD Purple 10TB at the mid-business capacity tier.
Seagate
Seagate SkyHawk AI 18TB
The Seagate SkyHawk AI 18TB enterprise surveillance hard drive — purpose-built for AI NVR workloads with 550 TB/year sustained workload, ImagePerfect AI firmware, 256 MB cache, supports 64+ cameras with AI metadata. The Chicago choice for enterprise 32-64 camera AI NVR deployments at federal facilities, hospital systems, university campuses, and stadium-class commercial sites.
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About Hard Drives
Surveillance-grade hard drives are purpose-built for the continuous write demands of NVR recording. Standard desktop or enterprise drives are not designed for 24/7 video recording and will fail prematurely in NVR systems. WD Purple and Seagate SkyHawk drives are engineered specifically for this workload — with firmware optimizations for streaming video, vibration tolerance for multi-drive systems, and rated duty cycles that match the always-on nature of security recording.