StandAlone PoE 4‑Channel Full HD Recorder

The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.

The total count of physical audio connectors available on the product, such as headphone jacks, RCA outputs, or optical ports. The value is an integer indicating how many separate audio input or output points can be used to connect external devices.

Indicates whether the product includes a built‑in stereo microphone, i.e., a single integrated microphone that captures sound from two channels for higher audio fidelity. A value of "Yes" means such a microphone is present; "No" indicates it is absent.

A list of the cable types that are supplied with the product, such as USB, HDMI, VGA, DisplayPort, LAN (RJ‑45), SATA, audio or other relevant connectors.

List of physical or logical interfaces that a camera device can use for connectivity, such as RJ‑45 Ethernet, Wi‑Fi, USB (Micro‑USB, USB Type‑C), BNC, and other standard connectors.

The pixel dimensions or megapixel count of a camera sensor, expressed either as width by height (e.g., 1920x1080) or in megapixels (e.g., 12 MP). It indicates the image detail capability for still photos and video captured by the device.

Indicates whether the device includes a built‑in card reader that can read removable memory cards such as SD, microSD, MMC or similar formats.

A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.

The total count of independent communication or signal pathways that a product can provide or receive, such as audio channels, video streams, data links, or radio frequencies. It indicates how many separate signals can be transmitted or processed simultaneously and is expressed as an integer.

A colour is a visual attribute that describes the hue or shade of an object or surface. It can be a single dominant colour, a combination of colours, or a range such as "Black, White". The value may be expressed in common names (e.g., Black, Silver) or descriptive terms (e.g., One Colour, Assorted).

The network and data interface technologies supported by the product, such as Wired, Wireless, USB, Bluetooth, or combinations thereof. Each value represents a distinct technology that can be used for communication or power delivery.

The highest electrical current a device draws from its power source during normal operation, expressed in amperes (A). It indicates the maximum current that the product requires and helps users verify compatibility with power supplies or sockets.

The maximum theoretical speed at which a device can send or receive data, expressed in bits per second (bps) or its multiples such as kbps, mbps, gbps, etc. It represents the upper bound of throughput under optimal conditions and is useful for comparing performance across devices and interfaces.

The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.

A list of the Ethernet standards that a product supports, such as Fast Ethernet (10/100 Mbps), Gigabit Ethernet (1 Gbps), 2.5 GbE, 10 GbE, and other variants. Each value is a free‑text label describing one supported interface; multiple values are separated by commas when the device offers more than one speed or generation.

Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.

The total amount of digital storage that an internal hard drive can hold, expressed as a numeric value with an appropriate unit such as GB, MB, or TB. This attribute helps users understand how much data the device’s built‑in hard drive can store and compare storage options across products.

List of the physical interface(s) used by a hard drive together with the number of bays it occupies, such as "2 x SATA (2 x Bay)" or "1 x M.2 PCIe". This attribute helps users determine both the connection type and how many drives can be installed in an enclosure or system.

The physical width of a hard disk drive expressed in inches or centimeters. It indicates the standard size that determines which enclosures, bays, and mounting hardware are compatible with the drive.

The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.

Indicates whether the product can have storage units inserted or removed while it is powered on and running without needing to shut down or reboot the system.

The range of electrical voltage that a device can safely accept from its power source, expressed in volts (V). It specifies the minimum and maximum supply voltages compatible with the product, covering both AC and DC inputs where applicable.

The IP (Ingress Protection) code indicates a product’s resistance to solids and liquids. It follows the standard two‑digit format (e.g., IP20, IP67), where the first digit represents protection against solid particles and the second against liquids. The code may include an ‘X’ to denote unknown protection for that category or multiple codes separated by commas for products offering different levels of protection in various configurations.

A list of the functions or statuses that an LED indicator on a device can display, such as power status, activity, link, and other operational signals.

The specific kind of light-emitting diode technology used in the product, such as IR LED, RGB LED, COB LED, or addressable RGB LED. It indicates the emission characteristics and typical applications of the LED component.

Indicates whether a user manual—physical or digital—is provided with the product. A value of "Yes" means that a manual is included, while a value of "No" indicates that no manual is supplied.

Indicates whether the product has a built‑in or integrated display that can be used to view content directly, such as on laptops, monitors, TVs, projectors, or other electronic devices.

The range of relative humidity (in percentage) within which the product is designed to operate reliably. Values are expressed as a minimum–maximum interval such as "20 - 80 %" and indicate the acceptable environmental moisture level for optimal performance.

The physical dimensions of a camera’s image sensor, typically expressed as two measurements (width × height) with units in millimeters and inches. This attribute indicates the size of the sensor that captures light for each frame, influencing resolution, depth‑of‑field, and low‑light performance.

A list of natural languages that can be displayed on the screen‑on‑display (OSD) interface of a device, such as a monitor or TV. Each entry represents a language option available for menu navigation, subtitles, and other on‑screen text.

A list of the positions or mounting options where a product can be installed, such as indoor, outdoor, wall, desk, floor, ceiling, or universal. Each value represents a distinct placement scenario that the device supports.

A comma‑separated list of RAID levels that a storage device or controller can support, such as 0, 1, 5, 10, JBOD, and other proprietary configurations. Each value represents a distinct RAID mode the system is capable of creating or managing.

Indicates whether the product is manufactured in accordance with the RoHS (Restriction of Hazardous Substances) directive, which limits the use of certain hazardous materials in electrical and electronic equipment.

Indicates whether the product comes with the necessary screws included in the package. A value of "Yes" means that screws are supplied, allowing the user to assemble or secure the item immediately after unpacking; a value of "No" means no screws are provided and must be purchased separately.

The type of physical storage medium that a product uses or supports, such as flash memory, hard disk drive (HDD), solid‑state drive (SSD), eMMC, or combinations thereof. It indicates the underlying technology for data persistence and helps users compare devices based on their storage capabilities.

The overall amount of digital storage that can be held by the device, including all built‑in and removable options. The value is expressed as a numeric quantity followed by an appropriate unit such as GB, MB, or TB.

The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.

A list of video compression codecs that the product can encode or decode, such as H.264, H.265, VP9, M-JPEG, and others. Each value represents a codec that is natively supported by the device’s hardware or software.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.

The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.