Simon John Horatio Nelson, 10th Earl Nelson of Trafalgar and of Merton was born on 21 September 1971. He is the son of Peter John Horatio Nelson, 9th Earl Nelson of Trafalgar and of Merton and Maureen Diana Quin.He was styled as Viscount Merton between 1981 and 2009.imon John Horatio Nelson, 10th Earl Nelson of Trafalgar and of Merton was born on 21 September 1971. He is the son of Peter John Horatio Nelson, 9th Earl Nelson of Trafalgar and of Merton and Maureen Diana Quin. He was styled as Viscount Merton between 1981 and 2009.
In the Catalog for USB-232/485 Series Interfaces, it says that the 1-port interface has a USB Type A plug whereas the 2- and 4-port interfaces have a USB Type B connector.
A typical host PC might have two USB 2.0 ports and two USB 3.0 ports. The USB 2.0 ports might be used for a USB keyboard and USB mouse, but the user may have far more than two additional USB devices to connect to the PC at the same time, and many of those might be capable of USB 3.0 operation.