This is usually caused by a power management conflict. In Device Manager, right-click the Rockey 200 → Properties → Power Management → Uncheck "Allow the computer to turn off this device."
Even after installing the driver, users report issues. Here are the top fixes for the "Rockey 200 not found" error: Z3x Smart Card Rockey 200 Driver-- Free
: After installing the Shell, navigate to your installation directory (usually C:\Program Files\z3x\Reader drivers\ ) to find the or generic Smart Card drivers. This is usually caused by a power management conflict
Feitian provides a universal driver for the Rockey series (Rockey 1, 2, 3, 4, and 200). This driver is digitally signed and works with Z3x. Feitian provides a universal driver for the Rockey
: Open Device Manager and look for "ROCKEY200 Smart Card Reader" under the Smart card readers section to confirm it is working correctly.