ASUS USB-BT400

Overview

The ASUS USB-BT400 is a Bluetooth 4.0 USB adapter designed to add reliable wireless connectivity to your computer or laptop. It enables seamless connection to a variety of Bluetooth-enabled devices such as printers, phones, headsets, and controllers without the need for cables. Featuring Bluetooth 4.0 technology with backward compatibility to earlier versions, it ensures fast and stable connections while supporting Bluetooth Low Energy (BLE) to minimize power consumption. Its compact size makes it easy to carry and ideal for both home and office environments.

Key features

• Bluetooth 4.0 technology delivers fast and stable wireless connections for smooth data transfer and audio streaming
• Backward compatibility with Bluetooth versions 2.0, 2.1, and 3.0 ensures broad device support across older and newer peripherals
• Bluetooth Low Energy (BLE) support reduces power consumption, extending battery life of connected devices
• Compact and ultra-portable design fits easily into any workspace or travel kit without adding bulk
• USB 2.0 interface allows for simple plug-and-play installation without the need for additional drivers on supported Windows systems
• Compatible with Windows 10, 8, 7, and XP, making it versatile for a wide range of PC setups

Key specs

• Bluetooth version: 4.0
• Backward compatibility: Bluetooth 2.0, 2.1, 3.0
• Interface: USB 2.0
• Power consumption: Supports Bluetooth Low Energy (BLE)
• Operating system support: Windows 10, 8, 7, XP
• Dimensions: Compact USB form factor

Connectivity and compatibility

This adapter connects via a USB 2.0 port, making it compatible with virtually any desktop or laptop that supports USB. It works well with a wide range of Bluetooth devices including wireless keyboards, mice, headsets, smartphones, printers, and game controllers. The backward compatibility ensures that even older Bluetooth devices can connect without issues, providing flexibility for mixed-device environments.

Installation and setup

Setup is straightforward with plug-and-play functionality on supported Windows operating systems. Simply insert the adapter into a USB port, and the system will recognize it automatically without requiring manual driver installation. This ease of use makes it a practical choice for users who want quick wireless connectivity without technical hassle.

Ideal uses and environments

The ASUS USB-BT400 is well suited to users who need to add Bluetooth capability to desktops or laptops that lack built-in wireless support. It works effectively in home offices, small business setups, and personal computing environments where connecting wireless peripherals or streaming audio is common. Its low power consumption and compact design also make it a good option for mobile users who want to maintain efficient wireless connections on the go.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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