| Manufacturer | Western Digital |
| Manufacturer Part # | WDH2NC40000N |
| Cost Central Item # | 10110633 |
| Product Description | My Book World Edition II - NAS - 4 TB - HD 2 TB x 2 - RAID 1 - Gigabit Ethernet |
| Device Type | NAS server |
| Host Connectivity | Gigabit Ethernet |
| Total Storage Capacity | 4 TB |
| Approximate Dimensions (WxDxH) | 3.9 in x 6.3 in x 6.5 in |
| Approximate Weight | 5.5 lbs |
| Storage Controller | RAID - RAID 1 |
| Hard Drive | 2 x 2 TB standard |
| Networking | Network adapter - Ethernet, Fast Ethernet, Gigabit Ethernet |
| Type | Network adapter |
| Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet |
| Features | iTunes server, UPnP Media Server |
| Interfaces | 1 x Hi-Speed USB - 4 pin USB Type A 1 x Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 |
| Min Operating Temperature | 41 °F |
| Max Operating Temperature | 95 °F |