Hard Drive HDD HP Unix b2600, 0.5 GHz, HDD, HP-UX Unix HP Unix b2600. Processor frequency: 0.5 GHz. Storage media: HDD. Operating system installed: HP-UX Unix. Power supply: 320 W. Chassis type: Desktop. Product type: Workstation. Weight: 40.1 lbs (18.2 kg). Product color: Gray