Western Digital WDBABS3200ABK User Manual - Page 61
How do I determine whether or not my system supports USB 2.0?
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MY PASSPORT FOR MAC AND MY PASSPORT SE FOR MAC USER MANUAL Q: How do I determine whether or not my system supports USB 2.0? A: Refer to your USB card documentation or contact your USB card manufacturer. Note: If your USB 2.0 controller is built in to the system motherboard, be sure to install the appropriate chipset support for your motherboard. Refer to your motherboard or system manual for more information. Q: What happens when a USB 2.0 device is plugged into a USB 1.1 port or hub? A: USB 2.0 is backward-compatible with USB 1.1. When connected to a USB 1.1 port or hub, a USB 2.0 device operates at the USB 1.1 full speed of up to 12 Mbps. If your system includes a PCI slot, you can achieve Hi-Speed USB transfer rates by installing a USB 2.0 PCI adapter card. Contact the card manufacturer for installation procedures and more information. TROUBLESHOOTING - 56