Posiflex PG-200/2D - Manual (Page 5)

USB Polling Interval
This option speeds up the USB HID Keyboard Emulation Device. Scan a bar
code below to set the polling interval. The polling interval determines the rate
at which data can be sent between the decoder and the host computer. A lower
number indicates a faster data rate. The default value is 8 msec.
When the polling interval is changed the decoder re-initializes.
CAUTION: Ensure your host machine can handle the selected data rate.
Selecting a data rate that is too fast for your host machine may
result in lost data.
1 msec
2 msec
*3 msec
4 msec
5 msec
6 msec
5