The keyboard and mouse work from one flash drive. Because of the lags, it is simply impossible to play or work. At first I thought that the problem was in the distance between the flash drive and the keyboard, but then I pushed them close (20-30 cm) and the problem remained. I changed the USB port for the flash drive several times, but there is no difference. This is definitely my worst purchase of devices, did not expect this from logitech.
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