WD Red Plus NAS internal hard drives are designed with CMR technology for RAID-optimized NAS systems with up to eight bays. Perfect for handling increased workloads associated with small- to medium-sized business environments, including expanded OS compatibility and ZFS.
| Form Factor: | 3.5 in. |
| Usage: | Network Attached Storage (NAS), Everyday computing |
| Product Weight: | 1.52 ounces |
| Color: | Red |
| Maximum Read Speed: | 175 megabytes per second |
| Color Category: | Red |
| Manufacturer's Warranty - Parts: | 3 years |
| Maximum Write Speed: | 175 megabytes per second |
| Rotational Speed: | 5400 revolutions per minute |
| Storage Drive Type: | HDD |
| Product Width: | 4 inches |
| Interface(s): | SATA |
| Product Height: | 1.028 inches |
| Storage Capacity: | 4000 gigabytes |
| Minimum System Requirements: | Specifically designed for use in NAS systems with up to 8 bays |
| Cache Buffer Size: | 256 megabytes |
| Model Number: | WD40EFPX |
| Product Compatibility: | Network Attached Storage (NAS), Desktop computers |
| Product Name: | Red Plus 4TB NAS Internal Hard Drive |
| Manufacturer's Warranty - Labor: | 3 years |
| Brand: | WD |
| Internal Or External: | Internal |
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