Drivers for the DSD TECH SH-U09C5/SH-U09C3 are below. This device uses the FTDI chipset to make the conversion from USB to UART.
Silicon Labs CP210x Drivers
File: CP210x_Universal_Windows_Driver-11.0.0.509.zip
Silicon Labs CP210x Drivers
File: CP210x_Windows_Drivers.zip
Silicon Labs CP210x Drivers
File: CP210x_VCP_Win2K.exe