WD a long-time leader in hard drive technology designs and manufactures the #1 selling internal and external hard drives and award-winning media players and network drives
| Product Code | WD40EFRX/RFB |
| Manufacturer | Western Digital Corporation |
| Manufacturer Part Number | WD40EFRX |
| Manufacturer Website Address | http://www.wdc.com |
| Product Line | Red |
| Product Model | WD40EFRX |
| Product Type | Hard Drive |
| Storage Capacity | 4 TB |
| Spindle Speed (rpm) | 5400 |
| Buffer | 64 MB |
| Drive Interface | SATA |
| Drive Interface Standard | SATA/600 |
| Drive Type | Internal |
| Drive Width | 3.5" |
| Height | 1" |
| Width | 4" |
| Depth | 5.8" |
| Weight (Approximate) | 1.40 lb |
