Abstract: Disclosed is a server system having a hot plug motherboard. The server system includes a motherboard module, at least one midplane board and at least one hard disk module. The motherboard module includes a plurality of motherboards. The midplane board is coupled by means of hot plugging to each of the motherboards. The midplane board includes at least one Peripheral Component Interconnect Express (PCIe) slot, and the PCIe slot is configured to be plugged with a PCIe card. The hard disk module includes a plurality of hard disks being coupled to the PCIe card through a signal wire.

Abstract: Disclosed is a server system having a hot plug motherboard. The server system includes a motherboard module, at least one midplane board and at least one hard disk module. The motherboard module includes a plurality of motherboards. The midplane board is coupled by means of hot plugging to each of the motherboards. The midplane board includes at least one Peripheral Component Interconnect Express (PCIe) slot, and the PCIe slot is configured to be plugged with a PCIe card. The hard disk module includes a plurality of hard disks being coupled to the PCIe card through a signal wire.

Abstract: This invention relates to a kind of powered stand device for motorcycle. It can be worked by the twin middle prop that is under the motorcycle through the driving motor, transmission gear wheel system operated with transmission linkage. Thus the rider doesn't need to get off the motorcycle, just needs to press the button and the twin middle prop which is below the motorcycle will be been onward, turned around and dropped from the original back place. The motorcycle itself will be propped up automatically by leverage. The activity of parking is completed by motor method to exempt from the inconvenience that riders need to move the motorcycles laboriously.