There is no single "JXMCU Driver." The term acts as a generic label for drivers required by the components used on JXMCU-branded boards. For the vast majority of USB programming modules sold under this brand, the is the correct software solution.
For most JXMCU cables, the installation follows a standard "One-Key" setup process: CH341SER.EXE - Nanjing Qinheng Microelectronics Co., Ltd. jxmcu driver
If the JXMCU/CH340 driver fails, consider: There is no single "JXMCU Driver
Rare, but can occur with power-saving USB settings. Ltd. If the JXMCU/CH340 driver fails