The XPS 1210 comes with 4 USB 2.0 ports! Amazing considering the size of the machine. Enable the following in your kernel to have support for USB 2.0, USB Mice, printers, harddrives and keydrives.

Device Drivers  --->
    USB support  --->
        <*> Support for Host-side USB
        --- Miscellaneous USB options
        [*] USB device filesystem
        --- USB Host Controller Drivers
        <M> EHCI HCD (USB 2.0) support
        <M> OHCI HCD support
        <M> UHCI HCD (most Intel and VIA) support
        <M> USB Printer support
        --- NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
        --- may also be needed; see USB_STORAGE Help for more information
        <M> USB Mass Storage support
        [ ] USB Mass Storage verbose debug
        --- USB Input Devices
        <*> USB Human Interface Device (full HID) support
        [*] HID input layer support