  This paper focus on the description of the design and performance of the
MICROSCOPE satellite and its Drag-Free and Attitude Control System (DFACS). The
satellite is derived from CNES' Myriade platform family, albeit with
significant upgrades dictated by the unprecedented MICROSCOPE's mission
requirements. The 300kg drag-free microsatellite has completed its 2-year
flight with higher-than-expected performances. Its passive thermal concept
allowed for variations smaller than 1 $\mu$K at the measurement frequency
$f_{\rm{EP}}$. The propulsion system provided a 6 axis continuous and very low
noise thrust from zero to some hundreds of micronewtons. Finally, the
performance of its DFACS (aimed at compensating the disturbing forces and
torques applied to the satellite) is the finest ever achieved in low Earth
orbit, with residual accelerations along the three axes are lower than
$10^{-12} {\rm m/s}^2$ at $f_{\rm{EP}}$ over 8 days.
