X300 Performance Hard Drive 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 256 MB or 128 MB buffer. It even features improved positional accuracy for stable recording. The X300 is available in capacities of up to 14 TB – ideal for PC gamers, graphic designers, and other users with demanding storage requirements. Powerful performance Performing at 7200 RPM, and with a 256 MB or 128 MB buffer, your data is stored securely and accessed quickly. Whether it's a quick game save, a large file that needs backing up, or working with multiple applications, the X300 retains its high-performance all day, every day. Ideal for graphic designers and creative professionals, the X300 is capable of handling almost any workload.