The IPC-644 is an ultra-compact 4-slot mini node chassis, an ideal embedded application workhorse. The IPC-644 can be equipped with a 4-ISA or 1 ISA/2 PCI/ 1 NLX backplane to hold 4 half-size cards. It is also equipped with both the DC and AC power inputs. The IPC-644 is suited for environments found on boats and other vehicles on the go, and equally suited for indoor operation. Designed to offer optimal performance, it comes with two LED indicators on the front panel for DC power and HDD activity, to facilitate easy diagnostics and maintenance. It is also equipped with two controllers, for Reset and Power on/off switch. Disk drives include one 3.5" FDD and one internal HDD drive. Other features include versatile PCI/ISA-bus backplanes, two 9/ 25-pin I/O reserved ports, built-in 80 W power supply and two 49/19.4 CFM cooling fans to dissipate heat fast.