LEDs can be pretty darn quick. My friend was able to use a status LED on his FPG...

		Gracana on Aug 12, 2016 \| parent \| context \| favorite \| on: Data Exfiltration from Speakerless Air-Gapped Comp... LEDs can be pretty darn quick. My friend was able to use a status LED on his FPGA board as a toslink transmitter.