This high-speed network-attached storage system with capacities up to 8 TB and a space-saving footprint gives you all the benefits of a big time data center without the need for a big time IT department. Perfect for centralizing and sharing data and multimedia files on a small office or home network. 
  Key Features
  Big capacity, small footprint - Offered in 2, 4 and 8 TB capacities, this small-footprint four-bay system takes up very little space and provides plenty of storage to go around. 
  RAID capability - Offers multiple RAID configurations for data protection and speed -- RAID 0 (Striped), RAID 1 (Mirrored) and RAID 5. The RAID 5 mode, only available on the fully-populated 4-drive system, is the recommended mode to achieve both high-performance and data protection through redundancy.
  The 4 and 8 TB WD ShareSpace systems are shipped in RAID 5 mode for maximum reliability. 
  The 2 TB WD ShareSpace system is shipped in Spanning Mode for maximum capacity and the flexibility to add additional drives without reformatting the system.
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  Find out more about RAID
  High-speed access, Ethernet connectivity - Provides data transfer rates up to 1000 Mbit/s when used in a GigE network.
  Gigabit networking and transfer rates are five to six times faster than other network storage systems. This performance is comparable to USB 2.0 direct-attached storage.    
  
   Easy setup and discovery - An intuitive set-up wizard and easy-to-use discovery tool makes installation a snap. 
  E-mail alert system - Monitors drive and system health and sends you an e-mail if a problem is detected. 
  Stream digital media anywhere in your home - Built-in media server for streaming music, photos and movies to any DLNA certified multimedia device such as Playstation® 3, Xbox 360®, wireless digital picture frames, and connected audio receivers. DLNA 1.5 & UPnP certified. 
  iTunes® server support - Centralize your music collection and stream to a Mac® or Windows® PC using iTunes software. 
  Build your collection - Centralize digital media from all your computers into one vast media library. Now anyone can enjoy your collection from anywhere in your home. 
  Microsoft Active Directory support - Will join an Active Directory domain to utilize AD users and groups. 
  Push-button transfer - Plug a USB drive into the front-mounted USB 2.0 port and push a button to automatically transfer all the data on the drive to the WD ShareSpace system. 
  Automatic network backup software - Set up continuous backup for the computers* in your network using the included automatic backup software. Select the files you want to back up, then set it and forget it; every time you save a change it's automatically backed up. *3 software licenses included. 
  Remote access software - Access your files anywhere, anytime using MioNet remote access services from WD. 
  Download manager - Supports scheduled download through FTP and HTTP. Simultaneously manage multiple download tasks. 
  Windows Vista™ certified - Works seamlessly with Windows Vista to provide easy setup and automatic discovery. 
  Built-in FTP server - Set up your own FTP server. Manage the access authority and share your files with your friends or customers easily. 
  Three USB 2.0 ports - Two USB ports on the back to connect additional USB hard drives for backup or additional network storage. One USB port on the front for push button transfer. 
  Cooler, quieter, eco-friendlier -  
     
Equipped with WD drives using WD GreenPower Technology, this system, with its efficient cooling architecture, and power saving mode, consumes up to 33% less power**, is reliably cool, and remarkably quiet.     
** Tests based on comparison between a 1 TB dual-drive system using 7200 RPM drives and a 1 TB dual-drive system using WD’s GreenPower drives.
  Power failure protection - Connect this system to your Universal Power Supply (UPS). If a power failure occurs, the system will shut down gracefully, protecting you from data loss. 
  Easy maintenance - Add or swap out drives quickly and easily. 
  Network storage manager - Manage your system configuration, create user IDs, passwords, security permissions, and quotas. 
  Ideal For
  For small workgroups of 5 to 10 this system offers compact, centralized storage, accessible from anywhere.
  Compatibility
     - Windows® Vista/XP/2000 
- Mac OS X 10.4.11+, 10.5.2+ 
Compatibility may vary depending on user’s hardware configuration and operating system.
  
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Package Contents 
     - Network storage system with RAID (populated with 2 or 4 hard drives) 
- Ethernet cable 
- 2 hard drive mounting rails (for 2-drive models) 
- AC adapter 
- Software CD 
- Quick Install Guide 
Performance Specifications       
  Serial Transfer Rate
   
    
USB 2.0
      
      
Serial Bus Transfer Rate (USB 2.0)                 480 Mb/s (Max)
 
  
  Transfer Rates
      
      
Ethernet                                         10/100/1000 Mb/s capable
 
  
  
  Physical Specifications      
      
      
Capacity                                                                      4 TB
 
      
      
Interface                                                               Ethernet
 
  
  
  Physical Dimensions      
  English
     Height                                                               7.73 Inches
     
      
Length                                                              7.84 Inches
    Width                                                                6.30 Inches
    Weight                                                           10.78 Pounds
 
  
  Metric
     Height                                                                 196.2 mm
 
     Length                                                                199.2 mm
    Width                                                                  160.1 mm 
      
Weight                                                                      4.9 kg
 
  Environmental Specifications     
  Temperature (English)
      
      
Operating                                                         41° F to 95° F
 
     Non-operating                                                 -4° F to 149° F
 
  Temperature (Metric)
     Operating                                                        5° C to 35° C
    Non-operating                                              -20° C to 65° C
 
  Electrical Specifications    
  Current Requirements
   
    
Power Dissipation
     AC Input Voltage                                            100-240 VAC
 
     AC Input Frequency                                              47-63 Hz
 
  As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second. 
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  - JMD Computer India