| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
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| Product Description | WD My Book WDBFJK0040HBK - hard drive - 4 TB - USB 3.0 |
| Type | Hard drive - external ( desktop ) |
| Capacity | 4 TB |
| Interface | USB 3.0 |
| Data Transfer Rate | 5.0 Gbps (USB 3.0) / 480 Mbps (USB 2.0) |
| Features | Automatic backup, NTFS formatted |
| Power Source | Included AC adapter |
| Dimensions (WxDxH) | 49 mm x 139.3 mm x 170.6 mm |
| Weight | 1.03 kg |
| Microsoft Certification | Compatible with Windows 7 |






| Manufacturer's Code: WDBFJK0040HBK | Western Digital |