With mechanical and system platforms mixed and matched to user's needs, panel PCs are available in fanless ULV designs with Intel Pentium or Celeron M processor or high-performance versions with Intel Core 2 Duo processor. HMI touchscreens from 6.4 to 20.1 in. are available, as are IP65/NEMA 4X PCs, which come surrounded in waterproof and dustproof anticorrosive stainless steel enclosure with protective glass. Systems are designed for 24 hr operation.