ASUS BT400 Wireless USB Adapter – Black

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Identifiers
Model ASUS USB-BT400
MPN ASUS USB-BT400
Dimensions / Weight
Key Features
Bluetooth profiles A2DP,FTP,GAP,HFP,HID,HSP,SPP
Bluetooth version
The specific version of the Bluetooth standard supported by the product, indicating its capabilities for wireless communication and compatibility with other devices. Values may be numeric (e.g., 4.2, 5.0) or include additional descriptors such as "+HS" or feature lists.
4.0
Connectivity technology
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.
Wireless
Depth
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.
8.1 mm
Frequency Range
The span of frequencies, expressed in hertz (Hz), that a device can operate within or respond to. It may be given as a single value, a numeric range (e.g., "20 000‑50 000 Hz"), or an open‑ended interval such as "2.4 GHz+" indicating the lower bound only.
2.4 - 2.4835 GHz
Height
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.
16 mm
Host interface
List of physical or logical interfaces that allow communication between a host device and other components, such as USB, PCI Express, SATA, M.2, Ethernet, Thunderbolt, or similar standards.
USB
Interface
List of physical or logical interfaces that allow communication between a hard drive and other devices, such as SATA, M.2 PCIe, U.2, SAS, NVMe, or other standard connections.
Bluetooth
Internal
Indicates whether the product is designed to be installed inside a computer system, such as an internal hard drive, SSD, or network card. A value of "Yes" means it can be mounted within the chassis; "No" indicates it is intended for external use.
No
LED indicators
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.
Yes
Maximum data transfer rate
The highest 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. This value represents the upper bound of throughput under optimal conditions and is useful for comparing performance across devices and interfaces.
3 Mbit/s
Modulation
The modulation technique used by a wireless device or component to encode digital information onto a carrier signal. Common schemes include QAM, OFDM, PSK, FSK and their variants. This attribute helps users understand the signal processing method and compatibility with other equipment.
8PSK,GFSK
Networking standards
A list of the networking protocols and standards that a device can support or comply with, such as IEEE 802.11 variants for wireless, IEEE 802.3 for Ethernet, or other relevant networking specifications. The values are typically separated by commas and may include both technical identifiers and consumer‑friendly labels.
IEEE 802.2
Plug and play
Indicates whether the product can be used immediately after installation without requiring additional configuration or drivers.
Yes
Power LED Yes
USB powered
Indicates whether the device receives its power supply through a USB connection. A value of "Yes" means the product can be powered directly from a USB port, while "No" indicates it requires an external power source.
Yes
Weight
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.
2.2 g
Wi-Fi band
A textual description of the Wi‑Fi frequency bands supported by a device, such as "Dual-band (2.4 GHz / 5 GHz)" or "Tri‑band (2.4 GHz / 5 GHz / 5 GHz)". The value indicates which radio frequencies are available for wireless communication and helps users understand the device’s connectivity capabilities.
Single-band (2.4 GHz)
Width
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.
19.5 mm
ASUS

Asus is a Taiwanese electronics company that produces a wide range of products, including laptops, desktops, mobile phones, tablets, and servers. Asus is best known for its laptops, which are often praised for their quality, features, and design.