WD Black 1TB 32MB 2.5" SATA HDDWD Black 2. 5 inch PC and laptop hard drives are designed to enhance the PC or laptop experience across higher intensity computing tasks for digital artists, video editors, photographers, and gamers. Available with up to 64MB of DRAM cache on higher capacity models, the WD Black 2. 5 inch PC Hard Drives are optimized for performance so you can spend more time experiencing the things you love most. Available in high capacities, the WD Black 1TB 3. 5