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General

Manufacturer Drobo iomega
Model DRDR4A21 34749
Lowest Price $609.99 Compare Drobo DRDR4A21 prices $129.95 Compare iomega 34749 prices
Warranty 2 years limited 3 years limited

Ports

RJ45 Ports 1 x 10/100/1000M 1 x 10/100/1000M
USB Ports 1 x USB 2.0 (type A) 3 x USB2.0
eSATA Ports Yes No
Other Ports 1 VGA (recovery only) 1 x PCIe

Storage

Drive Bays 2 2
Hard Disk Interface 2 x SATA 2 x SATA
Hard Disk Size 4TB 2 x 500GB
Rotational Speed 7200RPM 7200RPM

Features

World\'s Most Expandable USB 3.0 Array

BeyondRAID Technology

Protection from Two Drive Failures

Self-Healing Technology

Storage Capacity: 10TB Maximum

Drives: Accommodates from one to five 3.5" SATA I / SATA II hard drives of any manufacturer, capacity, spindle speed, and/or cache. No carriers or tools required.

Power:
Idle system (standby, drives off) = 12 watts
Typical busy system (four drives) = 56 watts

File System Options
Windows: NTFS
Mac OS X: HFS+
Cross-Platform: FAT32
Linux: EXT3

Operating System Support:
Windows 2008 Server
Windows 2003 Server
Windows XP
Windows Vista
Windows 7
Mac OS 10.5 or higher
Linux* using EXT3

*Linux support currently in Beta
Easy file sharing, data backup and print serving from any networked Windows PC, Mac or Linux workstation

Form Factor

Dimensions 10.3" x 7.3" x 5.9" 8.0" x 5.6" x 3.7"
Weight 5.8 lbs. lbs 5.0 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 File Server: SMB, AFP, FTP, HTTP, HTTPS
Others: Apple Bonjour, BitTorrent, NTP, DHCP, Apipa
CIFS/SMB/Rally (Microsoft), NFS (Linux/UNIX), AFP/Bonjour (Apple), FTP, HTTP, HTTPS, SNMP
Processor Intel Atom D510 1.66GHz (Dual Core) 1GHz CPU
Memory RAM: 1GB DDR II
Flash: 512MB
256MB RAM
RAID RAID 0, 1 RAID Support—RAID 1 with automatic RAID rebuild. JBOD mode also available
LEDs Status, LAN, USB, eSATA, HDD HDD Power, Activity (Yellow) / Fail (Red)
LAN_WAN Activity (Green) /
USB_COPY_Busy (Blue)
USB_COPY_ Fail (Red)
Power AC Input 100-240V, 50-60Hz, Energy Star V Rated External power adapter 19V input (support 2TB and above HDDx4)
Temperature 0°C - 40 °C 5°C - 40 °C
Humidity 0-95% RH (non-condensing) 0-80% RH non-condensing

Software

Operating System Latest version of Windows XP, Windows Vista, Windows Vista 64-bit, Windows 7 / Mac OS X 10.4, 10.5, 10.6 / Linux 2.6 Windows XP, XP Professional, Vista (x32 and x64)
Management Internet Explorer v6 or other Java-enabled Browsers
5 Different Hard Drive Configurations
Scandisk
E-mail Alerts
Drive Quotas
Power Management
Performance tuning options
Device health status
System configuration backup and restore
Email alerts and event logs
Network UPS monitoring
SNMP

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