Datalogic QuickScan I QD2400 - Manual (Page 59)

Keyboard Settings Enter/Exit Programming Mode
Product Reference Guide 49
USB Keyboard Speed
This option specifies the USB poll rate for a USB keyboard.
NOTE
DEFAULT
$CKBSP01(CR)
USB Keyboard Speed = 1ms
$CKBSP02(CR)
USB Keyboard Speed = 2ms
$CKBSP03(CR)
USB Keyboard Speed = 3ms
$CKBSP04(CR)
USB Keyboard Speed = 4ms
$CKBSP05(CR)
USB Keyboard Speed = 5ms
$CKBSP06(CR)
USB Keyboard Speed = 6ms
This feature applies ONLY to the USB Keyboard interface.