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USB 3.0 port provided by an ExpressCard-to-USB 3.0 adapter may be connected to a separately-powered USB 3.0 hub, with external devices connected to that USB 3.0 hub. On the motherboards of desktop PCs which have PCI Express (PCIe) slots (or the older PCI standard), USB 3.0 support can be added as a PCI Express expansion card .
USB up to 2.0 allows a host or hub to provide up to 2.5 W to each device, in five discrete steps of 100 mA, and SuperSpeed devices (USB 3.x) allows a host or a hub to provide up to 4.5 W in six steps of 150 mA. USB-C allows for dual-lane operation of USB 3.x with larger unit load (250 mA; up to 7.5 W). [100]
The Samsung Galaxy Beam i8530 (also known as the Galaxy Beam) is a projector-enabled smartphone produced by Samsung. Its main feature is a built-in DLP nHD projector at up to 50 inches (1,300 mm) in size at 15 lumens. In February 2012 the i8530 Galaxy Beam was presented at the Mobile World Congress in Barcelona.