![WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURX [Old Version]](https://m.media-amazon.com/images/I/51VFFWVqI4L.jpg)
🎥 Capture every moment, never miss a frame.
The WD Purple 4TB Surveillance Hard Disk Drive is purpose-built for continuous, high-demand surveillance environments. Featuring a 5400 RPM speed, SATA 6 Gb/s interface, and 64MB cache, it supports up to 32 HD cameras with prioritized write operations to reduce video frame loss. Ideal for professional security systems requiring reliable, 24/7 video recording.
| Standing screen display size | 3.5 Inches |
| RAM | 4 GB |
| Hard Drive | 4 TB Mechanical Hard Disk |
| Brand | Western Digital |
| Series | Purple |
| Item model number | WD40PURZ |
| Hardware Platform | PC; Mac |
| Operating System | Windows, Mac |
| Item Weight | 1.6 pounds |
| Product Dimensions | 5.8 x 4 x 1 inches |
| Item Dimensions LxWxH | 5.8 x 4 x 1 inches |
| Color | Purple |
| Computer Memory Type | DDR3 SDRAM |
| Flash Memory Size | 4 TB |
| Hard Drive Interface | SATA 6 GB/s |
| Hard Drive Rotational Speed | 5400 RPM |
| Manufacturer | Western Digital |
| ASIN | B00IMPO5OW |
| Is Discontinued By Manufacturer | No |
| Date First Available | February 25, 2014 |
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![WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURX [Old Version]](https://images-na.ssl-images-amazon.com/images/I/51VFFWVqI4L._AC_UL116_SR116,116_.jpg)
![WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURX [Old Version]](https://images-na.ssl-images-amazon.com/images/I/71RQa+fNNGL._AC_UL116_SR116,116_.jpg)
