Keysonic ACK-540U+ Wired Mini Keyboard, USB, Built-in Touchpad, UK Layout UK-Wide Next Business Day Delivery

Indicates whether a keyboard or other input device supports anti‑ghosting, a feature that prevents the registration of unintended key presses when multiple keys are pressed simultaneously. A value of "Yes" means the device can reliably detect and process multi‑key combinations without false activations; "No" indicates it lacks this capability.

Indicates whether a keyboard or similar input device has backlighting for its keys, allowing the keys to be illuminated in low‑light conditions.

Indicates whether the product requires batteries for operation. A value of "Yes" means that batteries must be supplied by the buyer, while a value of "No" indicates that no batteries are needed or that the device is powered otherwise.

The duration a device can operate on a single charge before needing to be recharged, expressed in various time units such as hours, days or months.

The linear distance that a cable covers, expressed with a length unit such as meters, centimeters or inches. It represents the total usable length of the cable for connecting devices.

A list of the card reader capabilities supported by a device. Each entry describes a specific type of memory card or interface that the product can read, such as SD, microSD, MMC, or USB On‑The-Go. If a device has no card reader, the list is empty.

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).

Indicates the types of network or data interfaces available on a product, such as wired (e.g., Ethernet, USB) and wireless (e.g., Wi‑Fi, Bluetooth). The value may list one or more interface names separated by commas.

The physical diameter of the headset’s audio connector, expressed in millimetres. This value indicates the standard plug size used to connect the headset to a device or base station.

The image contrast ratio is the proportion between the brightest and darkest luminance that an image can display, expressed as a simple ratio such as 1000:1. It indicates how well an image can differentiate light from dark areas, affecting visual clarity and color depth.

Represents the maximum number of individual key presses that a keyboard can register at the same time without missing any input. This value is used to evaluate how well a keyboard handles rapid or complex typing and gaming actions.

The type of mechanical or membrane switch used in a keyboard or other input device. It indicates the tactile feel, actuation force and key travel characteristics that affect typing comfort and performance.

Indicates whether the product incorporates LED lighting. A value of "Yes" means the device has one or more LEDs for illumination, while "No" indicates no LED components are present.

Indicates whether the product can run or is compatible with Apple macOS operating systems, including various versions and architectures. A value of "Yes" means the device supports macOS; "No" indicates it does not.

Indicates whether a keyboard or input device includes dedicated media control keys, such as play/pause, volume up/down, and mute. These keys allow users to manage audio and video playback directly from the keyboard without using on-screen controls.

Indicates whether a mouse is supplied as part of the product’s standard package or bundle. A value of "Yes" means a mouse is included and ready for use; a value of "No" means no mouse is provided and must be purchased separately.

Indicates whether a device (such as a mouse or keyboard) includes built‑in memory for storing settings, profiles, or other data. A value of "Yes" means the product has onboard memory; "No" indicates it does not. Some devices may specify the number of memory slots or profiles available, but the primary purpose is to inform users whether the device can retain custom configurations locally.

The frequency at which a device reports its state to the computer, expressed in hertz (Hz). It indicates how many times per second the device updates its position or button status, affecting input latency and responsiveness.

Indicates whether the product includes a rechargeable battery that can be recharged and reused, as opposed to a single‑use or non‑rechargeable power source.

Indicates whether the product contains a battery. A value of true means the device has an internal or removable battery, while false indicates it does not.

The number of times per second that a display updates its image, expressed in hertz (Hz). It indicates the smoothness and responsiveness of motion on the screen; higher rates generally provide a more fluid visual experience.

Indicates whether a keyboard has keycaps that can be detached and replaced by the user. A value of "Yes" means the keycaps are removable; "No" means they are fixed or not applicable.

The time interval between a stimulus and the corresponding response of a device or system, expressed in units such as milliseconds (ms). It indicates how quickly the product reacts to input or processes data, which is critical for performance-sensitive applications like displays, gaming monitors, and interactive devices.

Indicates the kind of scroll wheel or scrolling mechanism present on a pointing device. It can be absent, simple, multi‑directional, touch‑sensitive, or other specialized designs. The value is expressed as free text describing the feature.

Indicates whether a pointing device such as a mouse or trackball includes a scroll wheel that can be tilted to adjust the scrolling angle or direction. The value is "Yes" if the device supports this feature and "No" otherwise.

Indicates whether the product includes a Win Lock key for security or access control. A value of Yes means the device has this feature, while No indicates it does not.