A power supply adapter includes a base plate, an electrical connector assembly disposed on the base plate, a support frame, a circuit board, and a shell body. The electrical connector assembly includes a hot connector assembly, a neutral connector assembly, and a ground connector assembly. When the adapter is plugged into a two-prong socket, the ground connector assembly is grounded to the two-prong socket. The support frame covers the electrical connector assembly and is affixed to the base plate. The circuit board is disposed on the support frame and electrically coupled to the electrical connector assembly. The shell body covers the support frame and circuit board and is affixed to the base plate. The power supply adapter can used with two-prong sockets that lack a ground slot, and provides grounding test function after being plugged into the two-prong socket, making it safe and convenient to use.

A tablet computer includes a housing, a display, a processing system, a camera system comprising a camera sensor, and a battery system, the battery system positioned within the housing. The battery system is configured to charge an external device. A charging cable retainer is configured to retain one or more cables against or within the housing. One or more integral cables are provide. The one or more integral cables include a cable comprising a first end fixedly coupled to the battery system, a first connector of a first type configured to mate with a first type of external device connector, a second connector of a second type configured to mate with a second type of external device connector, and a lens configured to form images on the camera sensor. The charging cable retainer includes a cable channel or magnet.

A tablet computer includes a housing, a display, a processing system, a camera system comprising a camera sensor, and a battery system, the battery system positioned within the housing. The battery system is configured to charge an external device. A charging cable retainer is configured to retain one or more cables against or within the housing. One or more integral cables are provide. The one or more integral cables include a cable comprising a first end fixedly coupled to the battery system, a first connector of a first type configured to mate with a first type of external device connector, a second connector of a second type configured to mate with a second type of external device connector, and a lens configured to form images on the camera sensor. The charging cable retainer includes a cable channel or magnet.

A combination outlet assembly includes a single piece integrally formed housing having first and second outlet cores respectively having a similar outer shape and profile but differently shaped sets of three terminal apertures, and three terminals associated with each respective set of three terminal apertures in the first outlet core and the second outlet core. The first outlet core and the second outlet core may be interchangeably used with power cord plug connectors of different types. Power cord latching features are also described. Power distribution units may include a number of combination outlet assemblies ganged together.

A combination outlet assembly includes a single piece integrally formed housing having first and second outlet cores respectively having a similar outer shape and profile but differently shaped sets of three terminal apertures, and three terminals associated with each respective set of three terminal apertures in the first outlet core and the second outlet core. The first outlet core and the second outlet core may be interchangeably used with power cord plug connectors of different types. Power cord latching features are also described. Power distribution units may include a number of combination outlet assemblies ganged together.

A coverless AC power outlet for use in a vehicle interior has a pivotable faceplate that covers or exposes power terminals for receiving prongs of an AC power plug. Internal terminals of the outlet are packaged in a cylinder which is interchangeable between a plurality of plug styles used in different regions of the world. Surrounding the faceplate, a ring of light indicates status of activated or nonactivated terminals.

A coverless AC power outlet for use in a vehicle interior has a pivotable faceplate that covers or exposes power terminals for receiving prongs of an AC power plug. Internal terminals of the outlet are packaged in a cylinder which is interchangeable between a plurality of plug styles used in different regions of the world. Surrounding the faceplate, a ring of light indicates status of activated or nonactivated terminals.

A track busway power distribution unit including a housing, a power input coupled with the housing and connectable to an electrical busway, a securement mechanism moveably coupled to the housing and structured to secure the power distribution unit to the electrical busway, and at least one outlet module located at least partially within the housing. The outlet module can include at least one outlet core having a core outer surface configured to mate within a first connector type. The outlet core can include a plurality of electrical terminals each coupled to the power input and configured to connect with mating terminals corresponding to both the first connector type and a second connector type that is different than the first connector type. A removable shroud can be positioned around the outlet core, wherein the shroud includes a shroud inner surface configured to receive the first connector type.

A ruggedized edge computing assembly is provided, which includes an edge computing device having a processor configured to control a controlled device. The ruggedized edge computing assembly includes a field connector configured to connect to the edge computing device via a plurality of pins and to the controlled device via a coupling. The ruggedized edge computing assembly further includes a housing overmolded around each of the field connector and the edge computing device. The housing includes two portions which are a field connector portion configured to accommodate the field connector and an edge computing device portion configured to accommodate the edge computing device. The two portions are configured to interlockingly engage together at an interface.

A compact battery and voltage supply controller apparatus for a tattoo machine is disclosed. The battery and controller are configured to connect the battery to the tattoo machine through replaceable internally received magnetic connection adapters. The toggle switch operated display screen provides easy-to-view status and health of the battery and incremental voltage adjustment using a voltage boost circuit and adjustment knob. The internal battery can be replaced and/or removed and recharged.