LaCie Desktop Hard DiskUser ManualInterface and Data Transfer InformationPage 18A data transfer is the flow of data that accomplishesa task, usually related to moving data from storage tocomputer RAM or between storage devices. Duringdata transfers, it’s best to wait before launching otherapplications on the same USB 2.0 port. Anomalies mayarise with computers that have USB 2.0 controllers thatdo not conform to OHCI (Open Host Controller In-terface) standards. In any other configurations, we can-not ensure 100% correct operation.If you experience hanging problems, proceed as fol-lows:Make sure that the USB 2.0 cable is connected tight-1.ly and securely on both ends of the cable, from thedrive to the computer.Check that the power supply and ground connection2.are seated properly.Disconnect your computer’s USB 2.0 cable. Wait 303.seconds. Reconnect.TeChNICAl NOTe: Controller - A control-ler is a component or an electronic card (referredto in this case as a “controller card”) that enables acomputer to communicate with or manage certainperipherals. An external controller is an expansioncard which fills one of the free slots (i.e. PCI orPCMCIA) inside your PC and which enables a pe-ripheral (ex. CD-R/RW drive, scanner or printer)to be connected to the computer. If your computeris not equipped with a USB controller card, youcan purchase an external controller through LaCie.Contact your LaCie reseller or LaCie TechnicalSupport (section 6, Contacting Customer Support)for more information.4.2. Data Transfers