Prepared for Mathieu F. | Delivered April 28, 2020
Understanding USB Standards
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To obtain a not-too-technical high-level review of the latest USB standards with details of what these standards want to solve.
USB 3.2 Gen 2x2 is the
USB version, coming from USB 3.2 Gen 2. And USB 3.0 is also known as USB 3.2 Gen 1.
USB 3.2 Gen 2x2 has
twice the speed
of USB 3.2 Gen 2 for data transfers, hence the reason for the '2x2' in its name.
USB 3.2 Gen 2x2, USB 3.2 Gen 2 and, USB 3.2 Gen 1 are
SuperSpeed USB 20Gbps, SuperSpeed USB 10Gbps and,
SuperSpeed USB 5Gbps
, respectively; which is their
respective transfer rates
These newer versions of USB 3.2 devices are
compatible with older devices
(providing backward compatibility). However, if there are "two products with different USB capabilities[, it] will operate at the older's transfer speed".
USB 3.2 standards now make it possible for the use of
two lanes rather than single lanes
to transfer data faster, "without sacrificing cable length".
They are designed for increased performance, improved data encoding "and
improved I/O power efficiency
It is recommended that manufacturers of these three products (i.e. SuperSpeed USB 20Gbps, SuperSpeed USB 10Gbps and, SuperSpeed USB 5Gbps) adhere to the USB-IF Compliance Program by submitting their products to determine compliance and gain access to the
USB-IF logo licensing program
The USB Power Delivery can charge large devices such as laptops and tablets because its current design allows it to
up to 100 watts