The PHU-220R is a 220GB hard drive that conveniently docks to XDCAM EX™ camcorders and enables direct recording of over 12 hours in HQ mode. It gives users peace of mind when taken along as a low cost per gigabyte backup if faced with unexpected variables that might leave them short of SxS memory cards. The unit can also be used to backup SxS clips via the camcorder, without the need for a computer.