News for hackers. Stuff that matters.
Re:USB4 Specification by spancap on Tuesday September 03, 2019 @08:04PM (#20872667)
(2) has killed people, such as the patient who was electrocuted in 1986 due to an IV pump power supply using the same connector as EKG leads. (Casey, "Set Phasers On Stun" 2nd edition, pp.177-180)
Re:USB4 Specification by hannasanarion on Tuesday September 03, 2019 @11:39PM (#20873797)
USB doesn't automatically deliver maximum power to whatever is plugged into it. The client device has to ask for it. The default 5v 500mA isn't going to hurt anybody.
Re:USB4 Specification by gsich on Wednesday September 04, 2019 @08:33AM (#20876524)
Neither is 5V 2A, but that's more to skin resistance that's really high at such low voltages.
Re:USB4 Specification by magduf on Wednesday September 04, 2019 @01:17PM (#20879305)
5V at 1000A is completely safe too. The only thing that matters with electrical safety is voltage, and anything under 50V is generally safe for humans, all because of skin resistance.