| Why does the array in the center of the cartridge of the HG-U133 Plus 2.0 and HG-U133A 2.0 Arrays appear purple instead of clear? | |||
| The new HG-U133 Plus 2.0 and HG-U133A 2.0 Arrays are the first arrays to utilize our next generation manufacturing process. This new process is an example of our continuing efforts to improve our arrays. It's the optical coating used in the new manufacturing process that gives the arrays their purple appearance. | |||