The 4TB My Book World Edition II External Hard Drive from Western Digital is an external network hard drive with remote data access capability. The drive is extremely easy to configure, removing the headaches associated with configuring network storage devices. The drive is compatible with Mac and Windows computers, and includes network backup software.

The dual-drive system features RAID capability. It comes configured as a RAID 1, which gives you 1TB of usable capacity due to real-time data mirroring. Data is written simultaneously to both physical disks, ensuring that no information is lost if either fails. It can also be configured as a RAID 0 for maximum performance with no data protection, a Spanned array, or a JBOD.

Features

• Automatically backup data from all computers on your network
• Configure as a RAID 0, RAID 1, Span, or JBOD
• RAID 1 gives you real-time data protection at half capacity
• RAID 0 writes data to both disks simultaneously, delivering full capacity and maximum performance; The downside, if either drive fails, all data is lost
• Span mode writes data to one disk until it is full, and then starts writing data to the next; this prevents you from losing all of your data if 1 of the 2 internal drives fails
• JBOD treats the 2 internal disks as separate volumes
• Restore lost, damaged, or older versions of files from backup via an intuitive software interface
• Access stored data over the Internet via the MioNet service
• Store your media and data on a central location, accessible from any computer on your network
• USB port for storage expansion
• Uses energy-efficient GreenPower WD drives
• Compatible with Windows and Mac

Specifications

Performance

Capacity

4TB

Drive Speed

7200rpm

Buffer

Not Specified by Manufacturer

Processor

None

Memory

None

Average Seek Time

Not Specified by Manufacturer

Sustained Transfer Rate

Not Specified by Manufacturer

Input/Output Connectors

Interface

Gigabit Ethernet

Ports

1x RJ-45
1x USB 2.0

Drivers

Supported

Not Required

Included

Not Required

System Requirements

Mac

Mac OS X 10.4, 10.5

Windows

Windows XP, Vista

Software

Web browser (IE 6 SP1, Safari 2.0, Firefox 2.0)
Adobe Flash ActiveX 9 required for WD Discovery

General

Mounting Orientation

Desktop

Power Requirements

AC: 100-240VAC, 47-63Hz

Environmental Requirements

Operating Temperature: 41-95°F (5-35°:C)
Storage Temperature: -4-149°F (-20-65°C)

Dimensions (WxHxD)

3.9 x 6.7 x 6.3" (9.9 x 17.1 x 16.1cm)

Weight

4.5 lb (2.1kg)

Includes

• Western Digital 4TB My Book World Edition II External Hard Drive
• Ethernet Cable
• AC Adapter
• Software CD-ROM
• Quick Install Guide