https://wiki.sipeed.com/hardware/en/kvm/NanoKVM/introduction...

Probably an older NanoKVM.

"NanoKVM-Cube hardware is built on the LicheeRV Nano platform. To coordinate production and maintain consistency with the LicheeRV Nano for the SMT project, the hardware retains the display, touch, MIC, and amplifier circuits. To address potential privacy concerns, versions 2.2.6 of the application and 1.4.1 of the firmware and above will remove the relevant drivers. We will also eliminate these components in future productions."