Warm and friendly reminder: If your computer does not have a CD-ROM that can be read the driver, you can download the Bluetooth driver through the GAROGYI web URL, and the driver content is the same as that in the CD. web URL:dropbox.com/s/3ktdqbq7egr50ee/Rtl5.3%20Driver.zip?dl=0. ? USB 2.0 interface for broader compatibility, ultra-miniature size for convenient portability. (compatible with USB 3.0). ? Fully backward compatible with Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0, Bluetooth 4.0, Bluetooth 5.0, Bluetooth 5.1, and other specifications. ? Ultra-low latency for lightning-fast connections, intelligent sleep and wake functions for energy efficiency, 24-bit CRC (Cyclic Redundancy Check) for interference resistance, and adaptive frequency hopping to reduce interference. ? Original manufacturer driver management software: REALTEK driver management software, user-friendly, powerful, and supports various application program extensions. ? Enhanced transmission rate: Provides a transmission rate of 3Mbps, enabling high-speed file and audio data transfer. ? Extended transmission distance: 10-20m ultra-long transmission distance (unobstructed), with a strong signal. ? Equipped with Taiwan Realtek 5.3 chip, fully compliant with Bluetooth 5.3 technical specifications, supporting dual-mode low-power transmission. For Windows 11, 10, and 8.1, it's usually a plug-and-play experience—no drivers needed. While Windows 7 might sometimes require manual driver installation, most systems follow the plug-and-play approach. If your system doesn't automatically recognize the adapter, you can manually install the driver to assist detection. Just a friendly reminder: If your computer lacks a CD-ROM drive, you can obtain the Bluetooth driver from GAROGYI's website: dropbox.com/s/3ktdqbq7egr50ee/Rtl5.3%20Driver.zip?dl=0. The GAROGYI 5.3 Bluetooth adapter is a new product known for its high speed and compatibility. It works seamlessly with Windows 7, 8.1, 10, and the latest Windows 11. No drivers needed for Windows 8.1, 10, and 11. Connect your computer wirelessly to devices like headphones, speakers, mice, keyboards, game controllers, smartphones, and printers for audio, data, and image transfer.