A microphone assembly includes a circuit board and a microphone array disposed on the circuit board. The circuit board includes: a first FPC extending along a first direction, and a second FPC extending along a second direction different from the first direction and separated from the first FPC, the second FPC and the first FPC are fixed to each other and form an electrical connection, and the microphone array is disposed on the first FPC.

A system includes a top printed circuit (PCB) including an array of contact pads, a bottom PCB including an array of contact pads, at least one interposer positioned between the top and bottom PCBs, including: an array of top connectors configured to contact the array of contact pads of the top PCB; an array of bottom connectors configured to contact the array of contact pads of the bottom PCB; and interconnections configured to electrically connect the top connectors and the bottom connectors, at least one spacer element positioned between the top PCB and the bottom PCB and configured to contribute to maintaining a specified distance between the top PCB and the bottom PCB; and at least one fastener of the top PCB and the bottom PCB. The system further includes fasteners configured to press the top PCB, the interposer, the bottom PCB, and the spacer layer together.

An adapter for connecting a PCI board and a PCIe board to a control board installed in a slot of an electronic device, includes a base plate. The base plate includes a holding structure configured to selectively hold a PCI relay board and a PCIe relay board, and an attachment structure configured to selectively attach a PCI bracket and a PCIe bracket.

An electronic device with parallel backplanes and a storage device with parallel backplanes. The electronic device includes a front inserting assembly, a rear inserting assembly, and a backplane assembly. The backplane assembly is connected to the front inserting assembly and the rear inserting assembly. The backplane assembly includes a plurality of backplanes arranged in parallel at intervals, the front inserting assembly includes a plurality of first units whose arrangement direction is the same as an arrangement direction of the backplanes, and the rear inserting assembly includes a plurality of second units whose arrangement direction intersects the arrangement direction of the backplanes. The backplane assembly is provided with the structure including the plurality of backplanes arranged in parallel at intervals and the channel between adjacent backplanes. In addition, the first units and the second units are connected to two opposite sides of the backplanes, respectively.

A control module attached to a lighting fixture and having a front cover portion may comprise one or more sensors, such as a daylight and/or occupancy sensor, for sensing information through the front cover portion. The control module may have a main printed circuit board (PCB) that extends from a front side to a rear side of the control module, and a sensor PCB perpendicular to the main PCB to enable at least one sensor attached to the sensor PCB to face the front side of the control module. The main PCB may comprise a wireless communication circuit and an antenna for communicating radio frequency (RF) signals, wherein at least a portion of the antenna is located within a plastic lip of the front cover portion of the control module. The control module may further have a conductive enclosure to reduce radio-frequency interference noise from coupling into the antenna.

A motherboard module is adapted for an M.2 expansion card to configure. The M.2 expansion card includes a connecting end and a fixing end. An edge of the fixing end has a semi-circular hole. The motherboard module includes a motherboard body, a locking member, and an abutting member. The motherboard body includes an expansion card slot, a first fixing hole, and a second fixing hole. The locking member is detachably fixed in the first fixing hole. The abutting member has a first end and a second end. The first end is detachably fixed in the second fixing hole. When the M.2 expansion card is installed on the motherboard module, the abutting member is located between the M.2 expansion card and the motherboard body, and the second end abuts against the M.2 expansion card. An electronic device is further provided.

An electrical interconnect for passing high speed signals through an electronic system with a high density of signals and high signal integrity. The interconnect includes an electrical connector and a transition portion of a printed circuit board to which the connector is mounted. Signal conductors are connected to pads on the surface of the PCB using edge-to-pad mounting. The pads align with intermediate portions of the signal conductors such that transitions within the connector that could degrade signal integrity are avoided. The signal conductors may be positioned as individually shielded broadside coupled pairs extending in rows within the connector. Surface traces on the PCB connect the pads to signal vias aligned for vertical routing out of the connector footprint. Ground planes underlying the surface traces facilitate a transition from the signal paths in the connector to those in the PCB with low mode conversion avoiding resonances in the connector shields.

An electronic display where various electrical components may be removed from a housing of the display and serviced or replaced without having to demount the display. The electronic display may include an electronic image-producing assembly in electrical communication with a backplane. Various electrical components (e.g., electronic assemblies) may be removably connected to the backplane using self-guiding electrical connectors. An access opening through a wall of the housing may be provided to facilitate removal of an electrical assembly through the housing while the display remains mounted to a vertical surface.

An interconnection system is described including a first printed circuit board, the first printed circuit board including a first portion of a filter, the filter used to communicate a signal between the first printed circuit board and a second printed circuit board, and a mechanical structure for coupling the signal between the first printed circuit board and the second printed circuit board, the second printed circuit board being oriented at an angle with respect to the first printed circuit board.

A printed circuit board includes: a first insulating substrate having a mounting hole that penetrates through the first insulating substrate from a first surface to a second surface; a second insulating substrate including a connection portion; a first electrode provided on the second surface and disposed at an edge of the mounting hole; a second electrode provided on the connection portion and joined to the first electrode; and an electronic component provided on the second surface. A center of mass of the second insulating substrate is disposed on the first surface of the first insulating substrate. A center of mass of the electronic component is disposed on the second surface of the first insulating substrate. The electronic component has a weight equivalent to a weight of the second insulating substrate.