Teac USB external floppy disk drive unit

lsusb
Bus 003 Device 007: ID 0644:0000 TEAC Corp. Floppy

dmesg
 usbcore: registered new driver libusual
 SCSI subsystem initialized
 Initializing USB Mass Storage driver...
 scsi0 : SCSI emulation for USB Mass Storage devices
 usbcore: registered new driver usb-storage
 USB Mass Storage support registered.
 usb-storage: device found at 7
 usb-storage: waiting for device to settle before scanning
 usb-storage: device scan complete
   Vendor: TEAC      Model: FD-05PUB          Rev: 2000
   Type:   Direct-Access                      ANSI SCSI revision: 00
 sd 0:0:0:0: Attached scsi removable disk sda
 sd 0:0:0:0: Attached scsi generic sg0 type 0