CH340 - 250000 baud rate not supported

Basic Information:

Printer Model:
MCU / Printerboard:
klippy.log

Fill out above information and in all cases attach your klippy.log file. Pasting your printer.cfg is not needed
When pasting code or config snippets use the code tags </> in the menu above

Describe your issue:

My board has CH340 USB to serial IC. Is there any reason to use Klipper’s default 250000 instead of what IC lists as supported - 460800, for example?

"CH340 supports common
baud rate: 50,75,100,110,134.5,150,300,600,900,1200,1800,2400,3600,4800,9600,14400,19200,28800,
33600,38400, 56000,57600,76800,115200,128000,153600,230400,460800,921600,1500000,2000000 "