Manufacturer Sonnet Technologies Thecus
Model FUS-R4QR5-4TB i8500
Lowest Price $963.42 Compare Sonnet Technologies FUS-R4QR5-4TB prices $2,145.00 Compare Thecus i8500 prices
Warranty 5 years warranty 1 year limited


RJ45 Ports 2 x 10/100/1000M
USB Ports 2x USB 3.0 port (Front: 1; Back: 1)
4x USB 2.0
eSATA Ports Yes No
Other Ports 1 x VGA


Drive Bays 4 8
Hard Disk Interface 8 x SATA
Hard Disk Size 4 x 1TB Diskless System
Rotational Speed 7200RPM


  • High Performance, Protected Data-When connected via eSATA and with four 1TB drives configured as a RAID 5 set, data transfers up to 225 MB/sec read, 177 MB/sec write while protecting the data
  • RAID 5 Onboard-Integrated hardware RAID controller supports RAID 5 drive configuration on its own; no need for a specialized RAID controller card
  • Four Interfaces, Single Cable Connection-Choose from eSATA, FireWire 800, FireWire 400, and USB 2.0 interfaces, and connect to your computer with a single cable
  • Informative Display and LED Indicators-Determine operating status at a glance
  • Simple Configuration-Integrated controls enable you to select RAID modes and configure the drives to meet your performance and data security needs, no matter which interface you choose
  • 4TB, 8TB, and 12TB configurations
  • Quiet Fans-Low fan noise levels make these Fusion storage systems suitable for use in noise-sensitive environments
  • eSATA, FireWire 800, FireWire 400 and USB cables included
Robust Data Management
Every organization is different. The i8500 empowers your organization with a bevy of RAID modes, including RAID 0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60 and JBOD. Choose the configuration that makes the most sense for your network or setup different arrays for different jobs. With the i8500, the choice is yours.

Superior Data Protection
Crucial company data can\'t be left to chance, which is why the i8500 is built for data security. Choose the optional Battery Backup Module (BBM) and enable the i8500 to safeguard unwritten data even in the event of a power outage. The i8500 even allows up to 32 snapshot versions, letting you easily rollback changes made to the system when the need arises.

Ultimate Flexibility and Connectivity
As your company\'s needs change, the i8500 can easily change along with it. Online disk roaming gives you the flexibility to install your drives into another i8500 without any data loss. And online volume expansion, migration, auto-rebuilding allow you to add extra storage at any time without service interruptions. What\'s more, the i8500 supports 8 host cluster connections per volume, allowing it to act as a centralized data storage pool for even large organizations.

Blazing System Performance and Speed
Your business moves fast and so should your data. Equipped with an Intel Xscale IOP CPU and 1GB of DDR RAM, the i8500 not only offers nearly instantaneous system response, but also enables transfer speeds of up to 105MB/s with a single port and 190MB/s with dual ports.

Form Factor

Dimensions 24.5" x 25.5" x 7" 23.07" x 16.85" x 3.54"
Weight 38 lbs 11.24 lbs. lbs
Form Factor Rack-mountable 2U


Data Link Protocol
Network Interface Controller
DLNA Certified No No


Standards IEEE 802.3ab
Supported Protocols CIFS/SMB, AFP (3.1), NFS, FTP, HTTP, HTTPS, Telnet, SSH, iSCSI and SNMP.
Processor Intel Xscale IOP Processor
Memory 1GB RAM; 512MB DOM
RAID RAID 0,1, 0+1, 3, 5, 6, 10, 30, 50, 60 and JBOD
LEDs Status, LAN, USB, eSATA, Power, HDD 1, HDD 2, HDD 3, HDD 4, HDD 5
Power 350W Redundant Power Supply
Temperature 5°C - 40 °C
Humidity 0-80% RH non-condensing


Operating System Supported Operating System
- Windows NT/XP/2003/Vista
- Mac 9.1 and above, including OSX, OSX Server, XSERVE
- Linux (all latest builds) which support iSCSI.
- And all other systems supporting iSCSI protocol
Management Power Management:
- Wake on LAN
- Scheduled Power on/off (Max 15 settings)
- Automatic Power on after Power Recovery

Access Right Management:
- Max User Accounts: 4,096
- Max Groups: 512
- Max. Share Folder: 512
- Batch Creating Users
- Import/Export Users
- User Quota Management
- Subfolder Permissions Support

Disk Management:
- Single Disk, JBOD, RAID 0 / 1 / 5 / 5+Hot Spare / 6 / 6+ Hot Spare, 10, 10+Hot Spare
- Online RAID Capacity Expansion & Online RAID Level Migration
- Bad Block Scan & HDD S.M.A.R.T
- Global Spare Drive
- AES 256-bit Volume-based Encryption
- RAID Recovery
- Bitmap Support
- Supports ISO Mounting (via Web File Manager)

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