...of connectors. • The cable • The USB 3.0 cable contains nine wires, four more than USB 2.0, which has one pair for data and one pair for power. USB 3.0 adds two more data pairs, for a total of eight plus a ground. These extra pairs enable USB 3.0...

...is always useful for cable management. • Rails. • A main cabinet component is one or two pairs of vertical rails with mounting holes to which you attach your equipment or shelves. The most common spacing between rails is 19 inches with hole-to-ho...