Samsung has introduced a 512GB solid state drive that is the first to use the company's high performance toggle-mode DDR NAND flash memory. The SSD uses the 30nm-class 32 gigabit chip that the company began producing in November 2009. The chip's ability to operate at either 3.3V or 1.8V means the new drive offers higher performance with the same power consumption as older 16 gigabit NAND-based SSDs, according to Samsung. When paired with a SATA II interface, the new drive can provide a maximum sequential read speed of 250MB per second and a 220MB per second sequentia
