Ubiquiti Networks LiteStation2

Product page
 * Datasheet

On the OpenWrt wiki, w/ some additional info in the NanoStation entry

Per Ubiquiti's datasheet...
 * The dimensions of the board are ~ 106.7 mm (L) x 88.9 mm (W) x 15.24 (H).

Ubiquiti's FCC ID list

UBNT's site specifies the usable DC voltage range as 5 to 24V. The box (of an older unit, probably) specifies the range as 5 to 18V w/ a warning not to exceed 18V.