I always thought that USB runs at 5v with a max of 500mA. But someone has said to me that USB ports have been running at 1A for a while now. Someone else said they work for a company and the devices 'sense' how many A a USB port can kick out.
I have a couple of issues with these replies Ive had. The first being that if modern devices running at 1A were plugged into an old motherboard with a 500mA USB port they would fry , but Im also told the motherboards have detection for this, which confuses me. Because then when you short the -/+ of a USB port the mobo wouldnt fry.
Im just curious because Ive made up a few cables and the devices would benifit from the extra.
I have a couple of issues with these replies Ive had. The first being that if modern devices running at 1A were plugged into an old motherboard with a 500mA USB port they would fry , but Im also told the motherboards have detection for this, which confuses me. Because then when you short the -/+ of a USB port the mobo wouldnt fry.
Im just curious because Ive made up a few cables and the devices would benifit from the extra.