Calciphylaxis. Calciphylaxis is a condition characterised by necrosis (cellular death) of the skin and fatty tissue. It is seen mainly in patients with end stage kidney disease. It is also sometimes called calcific uraemic arteriolopathy.
Besides a data link, USB provides 5 +/- 0.25 volts to power an otherwise unpowered device or charge a battery in a self powered device. A USB controller or hub is required to power one unit load (100 mA, a low power load). It can optionally power up to 5 unit loads (500 mA, a high power load).
USB-C, USB PD, and Power Delivery. The USB PD specification is also closely intertwined with USB Type-C. Currently, a USB 2.0 connection provides up to 2.5 watts of powerâenough to charge your phone or tablet, but thatâs about it. The USB PD specification supported by USB-C ups this power delivery to 100 watts.