Capacity	320 GB
The capacity of the HDD is the data volume index. The more Gigabytes the higher the capacity of the HDD. The average volume of a DivX film is 1.3Gb, the volume of an Mp3 music file is 10Mb (1/100th of a Gigabyte). You should select an HDD of the capacity compliant with your needs.
eSATA	No
FireWire	No
Power supply	USB
The external HDD is an electronic device with a certain capacity and power consumption. When you select an HDD you should take into account whether it will be used at places where a permanent power supply source is available (220V socket, an external power supply unit) or at places where the battery pack of the portable computer is the only power supply source (USB or battery pack power supply). If you chose an HDD with USB power supply you should remember that it will consume the power of the portable computer, thus the battery life will be considerably shorter during the time when the disc is used.
RJ45	No
USB	3.0
The interface of the connection of the HDD is the connection with the computer, therefore when you buy an HDD you should verify that your computer has the relevant connection slot compatible with the HDD interface. The convenient USB connection provides a possibility of connecting an external HDD to almost any modern computer and to handle the data stored therein both at work and at home. Standard USB 2.0 connection: During the next years the USB 2.0 will be replaced by the new USB 3.0 interface:
Weight	< 1 Kg
The weight of the external HDD without accessories and the power supply unit. This measure is approximate and can slightly differ from the actual weight of the disc. External HDDs can be divided into stationary discs that are used at a certain location and portable discs. The first ones usually are heavier and with the current adapter as the power supply source. Portable discs are smaller and lighter (this is achieved by using the 2,5'' internal HDD and a very light enclosure) and the USB supply type.
Wi-Fi	Nav
Spindle rotation speed	5400 rpm
HDD rotations is a parameter impacting the speed, electricity consumption and the noise of the operation of the device. If you want to achieve the maximum writing/ reading speed you should buy an HDD with the disc speed of 7200rpm. If the mobility, silent operation and electricity saving are important you should choose an HDD with 5400rpm or less.

Name - WD My Passport Essential 320GB HDD USB3.0/USB2.0 Dual Compatibility 2,5inch RTL extern RoHS compliant Black
Image - http://static.actebis-images.com/productimages/571e3f17-92e6-4265-8536-b59eaacb1f3b.jpg
Manufacturer - WESTERN DIGITAL
Manufacturer Part No - WDBACY3200ABK-EESN
Description - The world's most popular portable drive is now smaller than ever. And it's smarter than ever with automatic, continuous backup software and password protection.
Feature - Extra level of security with password
Feature - See your backup as it happens
Feature - Protect your data automatically
Feature - Bring back lost files effortlessly
Feature - Drive lock
Product Description - WD My Passport Essential WDBACY3200ABK - hard drive - 320 GB - USB 3.0
Type - Hard drive - external ( portable )
Capacity - 320 GB
Interface - USB 3.0
Data Transfer Rate - 5.0 Gbps (USB 3.0)
Features - Password authentication
Power Source - USB bus
Enclosure Colour - Midnight black
Dimensions (WxDxH) - 11 cm x 8.3 cm x 1.5 cm
Weight - 140 g
Localisation - Middle East, Africa, Europe
Microsoft Certification - Compatible with Windows 7
Manufacturer Warranty - 2 years warranty
Manufacturer - WESTERN DIGITAL
Manufacturer's part No. - WDBACY3200ABK-EESN
Item Number - 1619334
EAN-Code - 718037772523
Intake -
Manufacturer's warranty - 24 Months Bring-In Warranty
min. order: - 1
Additional VPE - 5 ST.540 S
Product name - WD My Passport Essential 320GB HDD USB3.0/USB2.0 Dual Compatibility 2,5inch RTL extern RoHS compliant Black
Description - WD My Passport Essential WDBACY3200ABK - Hard drive - 320 GB - external ( portable ) - USB 3.0 - midnight black
EAN-Code - 718037772523
Device Type - Hard drive - external ( portable )
Capacity - 320 GB
Interface - USB 3.0
Features - Password authentication
Width - 11 cm
Depth - 8.3 cm
Height - 1.5 cm
Weight - 140 g
Interface Transfer Rate - 5.0 Gbps (USB 3.0)
Interfaces - 1 x USB 3.0
Power Source - USB bus
Software Included - Smartware
OS Required - Microsoft Windows XP, Microsoft Windows 7, Microsoft Windows Vista, Apple MacOS X 10.6, Apple MacOS X 10.5
Cables Included - 1 x USB cable - external
Compatible with Windows 7 - "Compatible with Windows 7" software and devices carry Microsoft’s assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7.
Compliant Standards - RoHS
Enclosure Colour - Midnight black
Localisation - Middle East, Africa, Europe
Package Type - Retail
Service & Support - 2 years warranty
Service & Support Details - Limited warranty - 2 years
Min Operating Temperature - 5 °C
Max Operating Temperature - 40 °C