Transcend's Ultra Series Solid State Drive—SSD25D is a 2.5-Inch SATA II SSD equipped with 64MB of built-in DRAM cache. It far outperforms standard 2.5-Inch hard drives, delivering extraordinary sustained transfer speeds of up to 230MB/s read and 180MB/s write to guarantee blazing fast throughput, regardless of file size or type. With these extremely fast transfers and virtually non-existent (around one millisecond) latency, a computer equipped with a Transcend SSD25D is more responsive, boots-up faster, and launches software applications in a fraction of the time required with a standard hard drive. The increased speed potential gained from using a high-speed DRAM cache makes the SSD25D an ideal upgrade for high-end gaming systems and workstations, providing a more enjoyable, lag-free computing experience—especially when used with the upcoming Windows 7 operating system.