Serial presence detection

With the continuous improvement of the processing capability of the display card, the power consumption and heat dissipation of the integrated chip on the display card have also increased dramatically. In April 1999, the Accelerated Graphics Port Implementors Forum released the AGP Pro 1.1 specification. AGP Pro is designed to provide additional power for a new generation of graphics accelerator cards, providing better performance for high-end workstations. AGP Pro's main content includes the extended AGP interface, thermal insulation, improved input/output brackets, fixed end brackets, interface to the graphics accelerator card, and design requirements for the new layout of the motherboard. The AGP Pro extends on both sides of the original AGP slot to provide extra power. It is used to enhance rather than replace the functionality of an existing AGP slot. According to the different energy available, AGP Pro can be subdivided into AGP Pro110 and AGP Pro50. Energy consumption is 25W ~ 50W AGP Pro graphics accelerator card is called AGP Pro50 graphics card, energy consumption is 50W ~ 100W AGP Pro graphics accelerator card is called AGP Pro110 graphics card. They all need extra space to dissipate heat, so they take up space next to the PCI slots. The AGP Pro50 graphics card requires sufficient cooling space on its front side, so it occupies a PCI slot next to it. In the output interface part of the graphics card, a two-bay wide bracket is used to ensure dedicated space for heat dissipation. The AGP Pro110 graphics card must be freed of two adjacent PCI slots, and a three slot wide bracket is installed on the display output of the graphics card to ensure its dedicated space. Intel made the following arrangements for AGP Pro compatibility: Normal AGP cards can be plugged into AGP Pro slots, but in turn, AGP Pro cards cannot be plugged into regular AGP slots.

VIA releases the world's first USB 3.0 HUB controller
VIA Group's VIA Labs, Inc. announced the launch of the world's first support USB 3.0 Hub controller "VIA VL810", using independent research and development of single-chip design.
The VIA VL810 provides an upper connector and four connectors, all with SuperSpeed USB 3.0 5Gbps, and is also compatible with Hi-Speed USB 2.0 480Mbps, Full-Speed USB 1.1 12Mbps, Low-Speed USB 1.0 1.5Mbps.
The controller chip is the first to use 80nm CMOS process manufacturing, lower power consumption, but also supports power management functions, can be idle when the access to low-power energy-saving state, but also allows the device and the host controller for delayed communication.
VIA demonstrated this USB 3.0 Hub controller solution at CES 2010. [2] 
1, USB-HUB is to provide extended communication equipment, Hub is not connected to external power supply can drive 2.5-inch mobile hard drive mainly to see the computer expansion port power supply capacity!
2, the general 2.5-inch mobile hard drive need to be powered by the computer or Hub, 3.5-inch mobile hard drive need to be equipped with a special power supply; please do not directly connect the kind of equipment;
3, do not take the case of external power supply: a computer USB port to provide the current of 500MA or so, can barely enough for a 2.5-inch mobile hard drive, and then part of the USB-Hub consumption is not enough 2.5-inch mobile hard disk of.
4, a lot of compatible chassis front USB port, due to more than a transfer, coupled with wire and other material problems, power supply capacity is even worse; very likely to cause mobile hard disk can not use or even lose data, damage to the hard disk;
5, if your mobile hard drive issued a "blah" sound, is due to lack of power caused; for your mobile hard disk, it is recommended that the best USB-Hub to the back of the chassis integrated USB port to ensure better Contact and power supply
6, the use of mobile hard drive, please use the original with the usb power supply line. Ordinary usb line, fine line, loss, can not meet the power supply needs!


USB 3.0 HUB

Usb3.0 Hub,Usb Hub,4Ports Hub,7Ports Hub

HuiDeGui Technology Development Company Ltd. ,