Abstract: A casing assembly includes a frame, a support member, and an elastic holder, where the frame includes a frame bottom plate and a partition, the partition is disposed on the frame bottom plate and includes an engagement structure located at a side of the partition located away from the frame bottom plate, the support member is disposed on the frame bottom plate, and the elastic holder is disposed on the frame bottom plate and includes a holding structure movable with respect to the frame bottom plate.

Abstract: A circuit board device includes a fixing member and a circuit board having a first hole. The fixing member includes abase having a second positioning portion and an opening, a first fixing component and a pillar structure having a first pillar body and a positioning pillar extending downward from the first pillar body and having a first positioning portion and a clamping portion. The clamping portion clamps the circuit board with the first pillar body when the first positioning portion is engaged with the first hole. The base is disposed in the first hole and abuts against the positioning pillar when the second positioning portion hooks the first hole and the opening is engaged with the positioning pillar. The first fixing component is detachably inserted into the pillar structure for clamping a first interface card with the first pillar body.

Abstract: A host casing of an electronic device includes a housing, a filler panel, and a disassembly and assembly structure. A front side of the housing has an opening. The dummy cover is disposed in the opening of the housing. The disassembly and assembly structure is disposed inside the housing. In a first state, the disassembly and assembly structure buckles with the dummy cover, thereby fixing the dummy cover. In a second state, the disassembly and assembly structure releases the dummy cover, and simultaneously pushes the dummy cover out of the opening. Therefore, the replacement action between the dummy cover and a pluggable device can be effectively simplified, so that maintenance personnel can easily assemble or disassemble the dummy cover without the assistance of additional tools.

Abstract: A circuit board device includes a fixing member and a circuit board having a first hole. The fixing member includes abase having a second positioning portion and an opening, a first fixing component and a pillar structure having a first pillar body and a positioning pillar extending downward from the first pillar body and having a first positioning portion and a clamping portion. The clamping portion clamps the circuit board with the first pillar body when the first positioning portion is engaged with the first hole. The base is disposed in the first hole and abuts against the positioning pillar when the second positioning portion hooks the first hole and the opening is engaged with the positioning pillar. The first fixing component is detachably inserted into the pillar structure for clamping a first interface card with the first pillar body.

Abstract: A host casing of an electronic device includes a housing, a filler panel, and a disassembly and assembly structure. A front side of the housing has an opening. The dummy cover is disposed in the opening of the housing. The disassembly and assembly structure is disposed inside the housing. In a first state, the disassembly and assembly structure buckles with the dummy cover, thereby fixing the dummy cover. In a second state, the disassembly and assembly structure releases the dummy cover, and simultaneously pushes the dummy cover out of the opening. Therefore, the replacement action between the dummy cover and a pluggable device can be effectively simplified, so that maintenance personnel can easily assemble or disassemble the dummy cover without the assistance of additional tools.

Abstract: A server apparatus includes a casing having an opening and a fixing structure away from the opening, a tray mechanism and a server module. The tray mechanism includes a tray, a transmission member slidably disposed on the tray and having a slot, a link having an engaging structure and being slidably disposed through the slot, and a handle movably connected to the transmission member and pivoted to the tray. The server module is disposed on the tray. When the tray is disposed in the casing and the handle pivots to a mounting position, the transmission member slides relative to the tray to drive the link to pivot, so as to rotate the engaging structure to be engaged with the fixing structure.

Abstract: A server apparatus includes a casing having an opening and a fixing structure away from the opening, a tray mechanism and a server module. The tray mechanism includes a tray, a transmission member slidably disposed on the tray and having a slot, a link having an engaging structure and being slidably disposed through the slot, and a handle movably connected to the transmission member and pivoted to the tray. The server module is disposed on the tray. When the tray is disposed in the casing and the handle pivots to a mounting position, the transmission member slides relative to the tray to drive the link to pivot, so as to rotate the engaging structure to be engaged with the fixing structure.

Abstract: An electronic device of the invention includes a main chassis, an electronic module, a cage and an EMI shielding structure. The main chassis has an opening. The cage is assembled to the main chassis and covers the opening. The electronic module is disposed in the cage. The EMI shielding structure includes a conductive frame and at least one first conductive spring clip. The conductive frame is assembled to the cage and electrically connected to the electronic module. The first conductive spring clip is connected to the conductive frame and contacts the main chassis, in which an electromagnetic wave emitted by the electronic module sequentially passes through the conductive frame and the first conductive spring clip to be transmitted to the main chassis.