Zebra ZD421T label printer Thermal transfer 300 x 300 DPI Wired &

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 range of alternating current voltage that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device across different regions.

Indicates whether the product supports Bluetooth Low Energy, a wireless communication protocol that enables low‑power data exchange between devices.

The specific version of the Bluetooth standard supported by a product, expressed as a numeric value (e.g., 4.2, 5.0) or with additional descriptors such as "+HS" or feature lists. This attribute indicates the capabilities and compatibility for wireless communication.

The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.

The total amount of internal flash memory available in a device, expressed as a data size (e.g., megabytes or gigabytes). This attribute indicates how much data can be stored on the device’s built‑in flash storage and is useful for comparing storage capacity across products.

The Harmonized System (HS) code is a standardized numerical identifier used internationally to classify traded goods. It consists of up to six digits, where each pair of digits represents progressively more specific product categories. The HS code facilitates customs duties, trade statistics, and regulatory compliance by providing a common language for describing products across borders.

The total amount of internal memory available in a device, expressed as a data size such as megabytes (MB) or gigabytes (GB). It indicates how much information the component can hold for active processes and affects multitasking performance.

The longest linear dimension of a label that the product can produce or accommodate, expressed with a length unit such as meters, centimeters, inches, or a combination of both (e.g., "3 m" or "90" (2.29 m)"). It indicates the maximum width or height that a label printer or labeling system can handle, helping users choose compatible labels and plan print jobs.

The widest printable dimension of a product, expressed in a linear unit such as millimetres or inches. It indicates the maximum width of paper or media that can be fed through the device for printing operations.

The maximum distance across the widest part of a roll, expressed in units of length such as millimeters or centimeters. It indicates the largest diameter that a roll can have and is used to verify compatibility with devices, accessories, or systems requiring a specific roll size.

A list of mobile operating systems that the product supports, including specific versions and architectures when relevant. Each value represents a distinct OS that is compatible with the device.

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.

A list of natural languages in which the page description of a product is available or supported, allowing users to view or interact with the content in their preferred language.

The range of relative humidity (expressed as a percentage) within which the storage device is designed to operate reliably. Values are given as a minimum–maximum interval such as "10 - 90 %" and indicate the acceptable environmental moisture level for optimal performance.

Represents the count of external USB 2.0 (high‑speed) connectors available on a device. The value is an integer indicating how many USB 2.0 ports can be used for data transfer or power delivery from the outside of the product, regardless of internal placement or version.

A list of the wireless networking protocols and frequency bands that a device can connect to, such as 802.11a, 802.11b, 802.11g, Wi‑Fi 4 (802.11n), Wi‑Fi 5 (802.11ac) or Wi‑Fi 6 (802.11ax). The values are typically separated by commas and may include both the technical name and a consumer‑friendly label.