Hard Drive HDD HP Unix b2600, 0.5 GHz, PA-8600, HDD, HP-UX Unix HP Unix b2600. Processor frequency: 0.5 GHz, Processor model: PA-8600. Memory clock speed: 120 MHz. Storage media: HDD. Operating system installed: HP-UX Unix. Power supply: 320 W. Chassis type: Desktop. Product type: Workstation. Weight: 18.2 kg. Product colour: Grey