Lexar announced that it has upgraded its JumpDrive Mercury USB flash drive with features that include enhanced performance, as well as the advanced PowerToGo mobile computing software platform. The speed-rated JumpDrive Mercury also features a convenient built-in capacity meter that lets the user know how much memory is available even when power is removed. Available in 1GB and 2GB versions, JumpDrive Mercury is Lexar’s first product to feature the innovative capacity meter.