Dell Latitude 5424 Rugged, Руководство по обслуживанию

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With today's ever increasing demands placed on data transfers with high-definition video content, terabyte storage devices,
high megapixel count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever
come close to the 480Mbps theoretical maximum throughput, making data transfer at around 320 Mbps (40 MB/s) — the
actual real-world maximum. Similarly, USB 3.0/USB 3.1 Gen 1 connections will never achieve 4.8Gbps. We will likely see a
real-world maximum rate of 400MB/s with overheads. At this speed, USB 3.0/USB 3.1 Gen 1 is a 10x improvement over USB
2.0.
Applications
USB 3.0/USB 3.1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall
experience. Where USB video was barely tolerable previously (both from a maximum resolution, latency, and video compression
perspective), it's easy to imagine that with 5-10 times the bandwidth available, USB video solutions should work that much
better. Single-link DVI requires almost 2Gbps throughput. Where 480Mbps was limiting, 5Gbps is more than promising. With its
promised 4.8Gbps speed, the standard will find its way into some products that previously weren't USB territory, like external
RAID storage systems.
Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products:
● External Desktop USB 3.0/USB 3.1 Gen 1 Hard Drives
● Portable USB 3.0/USB 3.1 Gen 1 Hard Drives
● USB 3.0/USB 3.1 Gen 1 Drive Docks & Adapters
● USB 3.0/USB 3.1 Gen 1 Flash Drives & Readers
● USB 3.0/USB 3.1 Gen 1 Solid-state Drives
●
USB 3.0/USB 3.1 Gen 1 RAIDs
● Optical Media Drives
● Multimedia Devices
● Networking
● USB 3.0/USB 3.1 Gen 1 Adapter Cards & Hubs
Compatibility
The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0.
First of all, while USB 3.0/USB 3.1 Gen 1 specifies new physical connections and thus new cables to take advantage of the
higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0
contacts in the exact same location as before. Five new connections to carry receive and transmitted data independently are
present on USB 3.0/USB 3.1 Gen 1 cables and only come into contact when connected to a proper SuperSpeed USB connection.
USB Powershare
USB PowerShare is a feature which allows for external USB devices (i.e. cellular phones, portable music players, etc.) to charge
using the portable system's battery.
Only the USB connector with a SS+USB+Battery --> icon, can be used.
This functionality is enabled in the system setup under the On Board Devices heading. You can select how much of the
battery's charge can be used as well (pictured below). If you set the USB PowerShare to 25%, the external device is
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