The Cudy BU530 is a nano-sized USB adapter that brings Bluetooth 5.3 technology in an extremely compact form factor. Measuring only 20×15×8 mm and weighing 2 grams, this tiny device barely takes up any space when plugged into your computer's USB-A port and can be left in place. Compatible with Windows 11/10/8.1/7 and Linux operating systems, the adapter is ready to use immediately on Windows 10 and 11 thanks to automatic driver installation. Technically supporting the latest Bluetooth 5.3 standard, the BU530 offers lower latency, improved energy efficiency, and a more stable connection compared to previous generations. The device requires a USB 2.0 or higher port and can be safely used in operating temperatures from 0°C to 40°C. With FCC and CE certifications, the product meets industry standards. This adapter is ideal for desktop computers or older laptops without Bluetooth support. It allows you to effortlessly connect Bluetooth peripherals such as wireless headphones, mice, keyboards, or printers to your computer. It is a practical and reliable solution for using wireless accessories in the office or connecting game controllers and speakers at home. Technical Specifications: - Bluetooth Standard: Bluetooth 5.3 - Interface: USB-A - Dimensions: 20×15×8 mm - Weight: 2.0 g - Operating Temperature: 0°C ~ 40°C - Storage Temperature: -30°C ~ 70°C - Compatible Operating Systems: Windows 11/10/8.1/7, Linux - Hardware Requirement: USB 2.0 or higher port - Certifications: FCC, CE - Driver Installation: Automatic on Windows 10/11