Buy.com offers the Crucial 256GB M4 Serial ATA 6Gb/s 2.5″ Internal SSD Solid State Drive, model no. CT256M4SSD2, for $219.99 with free shipping ($0.86/GB). That’s tied with our expired mention from two days ago (which also came with a $22 Buy.com credit) and the lowest total price we could find by $23. It features read speeds of up to 500MB/s and write speeds of up to 260MB/s.