
Device Type Hard drive - external
Width 5.4 cm
Depth 13.7 cm
Height 16.6 cm
Weight 1.17 kg
Hard Drive
Capacity 1 TB
Interface Type IEEE 1394b (FireWire 800) / IEEE1394 (FireWire) / Hi-Speed USB / eSATA-300
Buffer Size 16 MB
Performance
Interface Transfer Rate 800Mbps(FireWire800)/400Mbps(FireWire)/480Mbps(Hi-Sp.USB)/3Gbps(eSATA)
Expansion / Connectivity
Interfaces 1 x Hi-Speed USB - mini-USB Type B
2 x IEEE 1394b (FireWire 800) - 9 pin FireWire 800
1 x eSATA-300 - 7 pin external Serial ATA
Miscellaneous
Cables Included 1 x USB cable
1 x IEEE 1394b cable - FireWire 800 (9-to-9 pin)
1 x IEEE 1394 cable - FireWire 400 (9-to-6 pin)
Compliant Standards EPA Energy Star, RoHS
Package Type Retail
Power
Power Source Included AC adapter
Power Device Power adapter
Voltage Required AC 120/230 V ( 50 - 60 Hz )
Software / System Requirements
Software Included WD Anywhere Backup
OS Required Microsoft Windows 2000, Microsoft Windows XP, Microsoft Windows Vista, Apple MacOS X 10.4.8 or later
Environmental Parameters
Min Operating Temperature 5 °C
Max Operating Temperature 35 °C

Specifications:
Interface:
- FireWire 800 (1394b)
- FireWire 400 (1394a)
- USB 2.0 (3-port USB hub)
Capacity: 1TB
Weight: 2.28 kg (5.02 lbs)
Dimensions:
- Length: 245 mm (9.63")
- Width: 122 mm (4.82")
- Height: 78 mm (3.07")
Transfer rates:
- USB 2.0480 Mbits/s
- FireWire 400400 Mbits/s
- FireWire 800800Mbits/s
Rotational Speed: 7200 RPM
Memory Cache: Up to 8MB
Format: HFS+ (default)
Volume Configuration: RAID 0 (default)
What's in the Box?
Iomega UltraMax 1TB Hard Drive
Cables:
- FW400 (1394a)
- FW800 (1394b)
- USB
Power Supply
EU & UK Power Cord
Quick Installation Guide
Solution CD with Software (EMC Retrospect - PC & Mac)
System Requirements:
Mac
PowerPC G3 or higher computer with built-in USB or FireWire
Mac OS X, version 10.1 or above
Safari 1.0 or higher to view User's Manual
PC
300 MHz processor or higher
USB or FireWire controller
Microsoft Windows 2000 Professional / XP Home / XP Professional
Microsoft Internet Explorer 5.0 or higher or Netscape 6.1 or higher to view User's Manual

the one above is 299Eur
the last one is 349Eur
which one will you choose