  The connectivity within single carrier information-processing devices
requires transport and storage of single charge quanta. Our all-electrical
Si/SiGe shuttle device, called quantum bus (QuBus), spans a length of 10
$\mathrm{\mu}$m and is operated by only six simply-tunable voltage pulses. It
operates in conveyor-mode, i.e. the electron is adiabatically transported while
confined to a moving QD. We introduce a characterization method, called
shuttle-tomography, to benchmark the potential imperfections and local
shuttle-fidelity of the QuBus. The fidelity of the single-electron shuttle
across the full device and back (a total distance of 19 $\mathrm{\mu}$m) is
$(99.7 \pm 0.3)\,\%$. Using the QuBus, we position and detect up to 34
electrons and initialize a register of 34 quantum dots with arbitrarily chosen
patterns of zero and single-electrons. The simple operation signals,
compatibility with industry fabrication and low spin-environment-interaction in
$^{28}$Si/SiGe, promises spin-conserving transport of spin qubits for quantum
connectivity in quantum computing architectures.
