The VU21A computing device constitutes a protected system block with a stand-alone built-in remote control unit intended for operation both in fixed and mobile facilities. The device is furnished with a data destruction system. The device is designed as a ruggedized article in an aluminum alloy casing. This design allows the product to be operated under severe conditions: in premises, in car bodies of wheel-based and track-based vehicles, at fixed and mobile onshore and offshore facilities. The Akkord-AMDZ unauthorized data access protection system may be installed.