Western Digital My Book for Mac (USB 3.0) User Manual - Manual (Page 7)

MY BOOK FOR MAC
USER MANUAL
ABOUT YOUR WD DRIVE – 3
Disk Drive Format
Your My Book for Mac drive is preformatted as a single HFS+J partition for Mac OS X
operating systems. If you want to use this drive with a Windows system, see
“Reformatting the Drive” on page 29 and “Troubleshooting” on page 30.
Physical Description
As shown in Figure 2, the My Book for Mac drive has:
• A power/activity indicator on the front
• The power connector and button, interface port, and a security slot on the back
Power/Activity LED
The power/activity LED shows the drive’s power state and activity as follows:
Power Button
Use the power button to safely power down the drive and avoid data loss or damage to
the drive.
USB 3.0 Interface
Super-Speed USB 3.0 supports data transfer rates up to 5 Gb/s. USB 3.0 is backward-
compatible with USB 2.0. Connection to a USB 2.0 port transfers data at the port
speed—up to 480 Mb/s.
LED Appearance Power State/Activity
On steady Idle
Fast flashing, approximately 3 times per second Activity
Slow flashing, approximately every 2.5 seconds System standby
Figure 2. My Book for Mac Drive
Power/Activity LED
Security Slot
USB 3.0
Power Connector
Power Button