The boards measure just 1.875 x 3.125 in. The units are available with or without enclosures, and the enclosures are available with or without flanges. Enclosures measure 2.13 x 3.25 x 2.13 in. Flanged enclosure mounting holes are 3.76 x 0.91 in. on centers. Tech9’s power converters offer +2% output voltage tolerance with excellent line and load rejection characteristics (60 DB typical).