Adapter for transferring 4K video via USB 3.0. Free Technical Library News

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4K Video Transfer Adapter USB 3.0

21.07.2014

Modern video cards and 4K monitors are equipped with several HDMI and DVI interfaces by default, but sometimes working moments require the simultaneous connection of three or four displays. The number of corresponding ports on the computer limits such manipulations. In this case, the available connectors, even if the UHD display model has the ability to connect via DisplayPort, may simply not be enough.

In this case, a solution from Club 3D comes to the aid of the user. The demonstrated adapter for connecting a monitor to a computer and then broadcasting 4K video bypasses the usual connectors on a graphics accelerator. On the one hand, the manufacturer equipped the "adapter box" with a DisplayPort connector, and on the other hand, the connection to a PC or laptop will be implemented via USB version 3.0.

The device model was named Club 3D USB 3.0 to 4K Graphics Adapter CSV-2302. The adapter supports the HDCP 2.0 protocol, as well as playback of protected content both in UHD format and with a picture in a lower resolution according to QHD (2560 x 1440), Full HD (1920 x 1080) and HD (1366 x 768) standards.

As for 4K broadcasting, the CSV-2302 will broadcast it at a maximum frequency of 30 Hz.

Previously, Club 3D engineers had already been developing a similar adapter, but at that time the interface available for use was a USB 2.0 port. This standard simply did not allow video transmission with a resolution of 3840? 2160 pixels.

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The heart of a woman does not grow old 21.09.2005

Why do women live longer than men? In developed countries, the gap in life expectancy is 5-6 years, in poor countries it is less (due to the underdevelopment of health care, the death rate of women during childbirth is relatively high). But there are no countries where there would be no difference. Why?

There are two possible answers here. One is evolutionary: if a woman lives to such an age that she manages to take part in raising her grandchildren, this is beneficial not only for the family, but for the entire species of Homo sapiens.

Another answer, purely medical, was recently given by British researchers from John Moores University in Liverpool. It turns out that the female heart almost does not age.

The British studied the power of the heart as a pump in 250 healthy, but not engaged in physical education men and women aged 18 to 80 years. The ejection volume at each contraction, blood flow velocity and blood pressure were measured.

Ultrasound was used to measure the volume of the heart chambers and the thickness of the muscle walls. It turned out that by the age of 70, the power of a man's heart drops by 18-20 percent compared to the age of 25, and the efficiency of a woman's heart practically does not change. Between the ages of 20 and 70, a man loses a third of the contractile cells of the heart wall, and women have almost no loss.

The reasons for this difference are still unclear. In any case, female sex hormones seem to have nothing to do with it.

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