  The SuperKEKB accelerator in Tsukuba, Japan is providing e$^+$e$^-$ beams for
the Belle II experiment since March 2019. To deal with the aimed peak
luminosity being forty times higher than the one recorded at Belle, a pixel
detector based on DEPFET technology has been installed. It features a long
integration time of 20 $\mu$s resulting in an expected data rate of 20 GByte/s
(160 GBit/s) at a maximum occupancy of 3 %. To deal with this high amount of
data, the data handling hub (DHH) has been developed. It contains all necessary
functionality for the control and readout of the detector. In this paper we
describe the architecture and features of the DHH system. Further we will show
the key performance characteristics after one year of operation.
