Western Digital WD140EDFZ 14TB 3.5" SATA Internal HDD 5400RPM

Western Digital WD140EDFZ 14TB — what it's for

This is a 14TB, 3.5-inch internal hard drive for desktop PCs, external enclosures and entry-level NVR/DVR storage. It uses a SATA III 6Gb/s interface, the standard connection found in most desktop machines and recorders.

Key specs

• Capacity: 14TB
• Form factor: 3.5-inch internal
• Interface: SATA III (6Gb/s)
• Spin speed: 5400 RPM class
• Sector format: Advanced Format (AF) 4K, for compatibility with modern operating systems

Where it fits

Running at 5400 RPM keeps power draw, heat and noise down — useful if the drive lives inside an enclosed NVR case that runs continuously. WD describes it as suited to light to moderate NVR/DVR usage: think a handful of camera streams recording to a small or medium CCTV system, or general archive and backup duty, rather than a large multi-camera 24/7 install.

Before fitting one, check two things: that your recorder or PC actually supports 14TB drives, and how many camera channels you're recording — high channel counts or long retention periods will fill this faster than a light setup. It's an OEM drive labelled for internal use, and WD doesn't position it as a dedicated surveillance-grade or enterprise unit, so it's best kept to controlled, moderate workloads rather than heavy always-on multi-stream recording.