BenQ 80GB HDD hitachi IC25N080ATMR04 F/W H69371 For Joybook 8100, 80 GB, 4200 RPM, 2.5", Ultra-ATA/100 BenQ 80GB HDD hitachi IC25N080ATMR04 F/W H69371 For Joybook 8100. HDD capacity: 80 GB, HDD speed: 4200 RPM, HDD size: 2.5", Interface: Ultra-ATA/100