Toshiba has launched two new 1.8in hard drives - one 80GB model, and a 160GB version - which it claims can reduce the storage footprint in ultraportables and mini laptops by as much as 40 percent compared to traditional 2.5in drives. Toshiba said the single-platter 80GB MK8017GSG and dual-platter 160GB MK1617GSG drives will ship to mobile PC manufacturers and resellers in August. Both of the new drives include a 3Gbit/sec serial ATA interface, have an average seek time of 15 milliseconds, 8MB of cache, and spin speeds of 5,400 rpm. Energy consumption is 0.0028 watts/GB for the 160GB model and 0.0056 watts/GB for the 80GB version.