Dell Precision 7720 Owner's Manual

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Contents

Dell Precision 7720 Owner's Manual Manual pdf 27 page image

Storage device (HDD or SSD type) is listed under the System Information under the General group.Identifying storage device in Windows 101 Type Device Manager in I'm Cortana, Ask me anything field.The Device Manager window is displayed.2 Click Disk Drives.The storage devices installed in the system are displayed.USB featuresThe Universal Serial Bus, or well known as USB was introduced to the PC world in 1996 which dramatically simplified the connectionbetween host computer and peripheral devices such as mice and keyboards, external hard drive or optical devices, Bluetooth and manymore peripheral devices in the market.Let's take a quick look on the USB evolution referencing to the table below.Table 1. USB evolutionType Data Transfer Rate Category Introduction YearUSB 3.0/USB 3.1 Gen 1 5 Gbps Super Speed 2010USB 2.0 480 Mbps High Speed 2000USB 1.1 12 Mbps Full Speed 1998USB 1.0 1.5 Mbps Low Speed 1996USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)For years, the USB 2.0 has been firmly entrenched as the de facto interface standard in the PC world with about 6 billion devices sold, andyet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands. The USB 3.0/USB 3.1 Gen 1finally has the answer to the consumers' demands with a theoretically 10 times faster than its predecessor. In a nutshell, USB 3.1 Gen 1features are as follows:• Higher transfer rates (up to 5 Gbps)• Increased maximum bus power and increased device current draw to better accommodate power-hungry devices• New power management features• Full-duplex data transfers and support for new transfer types• Backward USB 2.0 compatibility• New connectors and cableThe topics below cover some of the most commonly asked questions regarding USB 3.0/USB 3.1 Gen 1.SpeedCurrently, there are 3 speed modes defined by the latest USB 3.0/USB 3.1 Gen 1 specification. They are Super-Speed, Hi-Speed and Full-Speed. The new SuperSpeed mode has a transfer rate of 4.8Gbps. While the specification retains Hi-Speed, and Full-Speed USB mode,Technology and components 27