The WILD40 Forced-Air, Conduction-Cooled 3U OpenVPX Chassis is an OpenVPX-compatible ATR that incorporates slots for up to four conduction-cooled 3U Annapolis OpenVPX FPGA Modules, one conduction-cooled 3U OpenVPX SBC and one conduction-cooled VITA 62 power supply. Plug-in Module slot spacing is 1″.