USB\VID_­1A86&­PID_­7523 drivers

Here is 3 drivers compatible with USB\VID_­1A86&­PID_­7523.
This is Device ID of USB-SERIAL CH340.
Here is only last drivers for this DeviceId. Almost all of them are compatible with your hardware.
Anyway, you can try to use extended search exactly for your hardware.
Category:Controllers
Manufacturer:Espada
Hardware:PAUB014
Software type:Driver
File Size:6.82Mb (7155674 bytes)
Released:14 Apr 2014
System:Windows VistaWindows Vista 64-bitWindows XPWindows XP 64-bitWindows Server 2003Windows Server 2003 64-bitWindows MEWindows 98 SEWindows 98Windows 7Windows 7 64-bitWindows Server 2008Windows Server 2008 64-bit
Description:Driver for Espada PAUB014Download Espada PAUB014 Driver
Category:Controllers
Manufacturer:ORIENT
Hardware:USS-102
Software type:Driver
File Size:205.2Kb (210125 bytes)
Released:30 Dec 2010
System:WindowsWindows 7
Description:Driver for ORIENT USS-102Download ORIENT USS-102 Driver
Category:USB
Manufacturer:Asound
Hardware:A-USB2RS232
Software type:Driver
File Size:183.55Kb (187959 bytes)
System:Windows VistaWindows XPWindows 2000Windows MEWindows 98Linux
Description:USB to RS232 cable driver for Windows 98/Me/2000/XP/Vista/LinuxDownload Asound A-USB2RS232 Driver