HIGH PERFORMANCE, PREMIUM STORAGE Toshiba’s X300 3.5” internal hard drive is designed for your professional or gaming PC – delivering reliable, large capacity, incredibly high-performance storage, made possible by a number of advanced features, including an ultra-high 128 MB buffer. It even features improved positional accuracy for stable recording. The X300 is available in 4 TB, 5 TB, and 6 TB capacities – ideal for PC gamers, graphic designers, and other users with demanding storage requirements.