The ExpressCard is used for USB 3 extension of a Lenovo T400. The card works, the driver installation on the supplied CD (Mini) was no problem. The already mentioned problem with the withdrawal occurs even when T400. The card is not locked to stop the device. Knowing this and fixed the card when pulling off of USB connectors, but this is no problem. Ansonste sits the card into the device. The supply of external hard Patten, 2.5 "to 1.5 TB, also works flawlessly with no use of the possible second power supply. External 3.5" hard drives, I had been to the module is not in use. Will probably no longer be needed.