The Panel PCs of the CP37xx series from Beckhoff, equipped with Intel Atom processors, are multi-touch-capable and IP 65-protected with their aluminum housing. Seven multi-touch TFT displays from 12 to 24 inches are available in 4:3, 5:4 and 19:9 (widescreen) formats. The CP37xx can be used at ambient temperatures of up to 45 °C, cooled via external cooling fins and fans for heat distribution inside the housing. The Panel PCs can be flexibly expanded via PCI modules and a third Ethernet connection, for example. A rotatable and tiltable mounting arm adapter for a 48 mm diameter mounting arm tube is also integrated. The connection cable is routed through the support arm, which can be mounted either from above or below. The up to four IPC connections are arranged with IP 65 connectors in the connection compartment. The CP37xx are equipped with one or two CFast cards. The RAID controller integrated on the board allows the mirroring of two identical CFast cards.