driver for external drive case on usb port

Hi

I have to buy my selfe external case for hdd but I don't know whether my ubuntu linux, needs some driver to be able to work with this device or it has inside of itselfe this driver ?

rhx for help.

It should not need any additional drivers. The HAL should see the device connected and assign it a device. You can then check either the console or /var/log/messages for the new device and format/partition/mount it.