Single-Board Computers (SBCs) were initially targeted for education and small projects with low powerprocessing needs. However, their computational power has increased dramatically in the last few years, and they are now used in more advanced developments. In this paper, a study of the feasibility of using ARM-based SBCs as hypervisors is done. The authors selected the Raspberry Pi 4 Model B and the ODROID-N2+ and assessed them as virtualization servers, when running up to four VMs simultaneously, with the Linux de facto hypervisor (KVM). The tests performed in this work include: reading and writing throughputs in different types of storage media, processing power assessment, memory performance, timed compilations of open-source software, and performance of encryption algorithms. The results of the experiments showed that the amount of memory available in these SBCs is a determinant factor about the maximum number of VMs that can be executed simultaneously. The performance of the ODROID-N2+ exceeded the Raspberry Pi 4 Model B. However, the community support received by the latter is huge compared to the one of the former, and this can be a game changer when selecting a viable platform.