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General

Manufacturer Drobo Western Digital
Model DR04DD10 WDBACG0020HCH-NESN
Lowest Price $299.99 Compare Drobo DR04DD10 prices $99.90 Compare Western Digital WDBACG0020HCH-NESN prices
Warranty 2 years limited 3 years limited

Ports

RJ45 Ports 2 x 10/100/1000M 1 x 10/100/1000M
USB Ports 2 x USB3.0 + 2 x USB2.0 1 x USB2.0
eSATA Ports No No
Other Ports 1 x PCIe iSCSI (utilizes Gigabit Ethernet)

Storage

Drive Bays 4 2
Hard Disk Interface 4 x SATA 2 x SATA
Hard Disk Size 4TB 2TB
Rotational Speed 7200RPM 7200RPM

Features

Consumer Mindset, Enterprise Feature Set.
Drobo was designed to meet a stringent design requirement: Anyone should be able to use Drobo regardless of technical experience. It is ready to go out of the box and will always stay that way. Drobo does all the work of managing an enterprise-grade your storage system for you.

No Software or Drivers are Needed!
The Drobo magic comes from the software that\'s built into the hardware called BeyondRAID—an advanced storage technology. Drobo does everything for you from expanding capacity when you add a drive, to self-healing around drive failures and data errors. Drobo also includes a powerful desktop software utility called Drobo Dashboard that shows you what Drobo is up to and adds important functionality including firmware updates, formatting options and email alerts.

Disk Interface
- Four-bay capacity
- 3.5" SATA I or SATA II hard disk drives
- No carriers required
- Mix and match capacities, disk brands and speeds

Max Sustained Transfer Rate:
FireWire 800: Up to 52MB/s reads and 34MB/s writes
USB 2.0: Up to 30MB/s reads and 24MB/s writes

Acoustics:
Normal operation: 20.9dB (negligible) to 24.2 dB

Power:
Idle system (standby, drives off) = 5 watts
Typical idle system - idle, drive spin down mode (one drive) = 12 watts
Typical busy system (four drives) = 40 watts

Operating System Support:
Windows 2000 (Professional, Server, Advanced Server)
Windows 2003 Server
Windows XP (Home, Professional, Media Center Edition)
Windows Vista (Home Basic, Home Premium, Business, Ultimate)
Mac OS X 10.4 and later
Simplify your digital life by consolidating your media in one location for everyone on your wired or wireless network to share with WD’s My Book Live home network drive. Back up all your PC and Mac computers to one safe place, access files securely over the Internet, stream media to your entertainment center, and show off all your photos with your iPhone.

Simplify your digital life – Store and back up your entire family’s movies, music, photos, and important files to one safe place. Reduce the clutter of all those USB sticks, CDs, and DVDs.

Share your media collection on your network – Plug the drive into your router so that any PC or Mac computer on your wired or wireless network can access the data.

Easy to set up, easy to find on your network

Automatic backup with WD SmartWare for Windows

Compatible with Apple Time Machine – Mac computer users can utilize all the features of Apple Time Machine backup software to protect their data. Back up all your Macs wirelessly to one location over your WiFi network.

Secure remote access – Access your files over the Internet from anywhere, using WD’s free remote access technology. It’s easy to securely access and share photos and documents with friends and family while you’re on the go.

Stream digital media anywhere in your home – Watch your daughter’s birthday party video or show off your vacation slideshow on your TV. The built-in media server streams music, photos and movies to any DLNA-certified multimedia device such as WD TV Live HD media player, Blu-ray Disc player, Xbox 360, or PlayStation 3. DLNA 1.5 & UPnP certified.

Leading-edge performance – Designed around the most recent advances in Ethernet chip technology, this product delivers read speeds up to 100 MBps. That’s 4 times faster than most consumer network drives in this category today.

Form Factor

Dimensions 10.7" x 6.3" x 6.3" 6.6" x 5.5" x 2"
Weight Average 17.6 lbs lbs 2.41 lbs. lbs
Form Factor 3.5" Desktop

Networking

Data Link Protocol Ethernet
Network Interface Controller
DLNA Certified No Yes

Hardware

Standards IEEE 802.3, IEEE 802.3u, IEEE 802.3ab IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Supported Protocols Networking: TCP/IP
File Sharing: CIFS/SMB, AFP, HTTP/HTTPS, FTP/SFTP/FTPS, NFS
Directory Integration: LDAP, Active Directory
Management: HTTP/HTTPS
Time Synchronization: NTP
TCP/IP, HTTP/HTTPS, NTP
Processor Intel Atom D510 1.66 GHz Dual-Core Processor 800MHz CPU
Memory 2 GB RAM 128MB RAM
RAID RAID 0, 1, 5, 6, 10, and JBOD RAID 0, 1 and JBOD
LEDs HDD Power, Activity (Yellow) / Fail (Red)
LAN_WAN Activity (Green) /
USB_COPY_Busy (Blue)
USB_COPY_ Fail (Red)
Power / LAN / HDD 1 / HDD 2
Power 100-240 VAC 50/60Hz External Power Supply - DC 12V / 4A Switching
Temperature 41-95° 0°C - 40 °C
Humidity 0-80% RH non-condensing 10% to 95% Non-Condensing

Software

Operating System Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit), Windows XP, Windows 2000, Windows Server 2008, Windows Server 2003, Windows 2000 Server Linux-embedded system
Management HTTP/HTTPS Drive Management
- Four Different Hard Drive Configurations (RAID 0, 1, JBOD, Standard)
- Drive Status with Email Alerts
- Drive Quotas
- Power Management

Device Management
- Internet Explorer v6 or other Java-enabled Browsers

Power Management
- Power Saving
- Schedule power off
- Auto Power Recovery support

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