【Support Bluetooth 5.0】Adapter applies the latest Bluetooth 5.0+EDR adapter, Bluetooth low energy. With the enhanced Data Rate (EDR) support, Its greatly improved the data transmission rate of Bluetooth technology, reaching 3Mbps. It is backward compatible with Bluetooth2.1/3.0/4.0/4.2 Dual-mode Bluetooth transfer. | 【Better Performance】Fast and further working distance than Bluetooth 4.0 Supports Bluetooth speakers, headphones, headsets, keyboards, mice, and more.Can work with Bluetooth printer and stereo headphone maximum transfer rate up to 3Mbpsand transmission distance up to 65ft/20M in open space. (NOTE: Operation range can be affected by physical obstructions and wireless interference) | 【Mini Size】Extremely compact USB adapter allows you to leave it on laptop or PC, no need to remove, without blocking surrounding USB ports, save space | 【MULTIPLE USAGE】USB Bluetooth dongle Connects with Bluetooth keyboards & mouse (NOT 2.4G devices), printers, projectors, PS4 and other BLE (Bluetooth Low Energy) devices. For controllers you may need to install specific drivers for different games / software to configure button settings. | 【Note】The product contains a CD-ROM with a driver. You need to install the driver in the CD-ROM before using the product. After the installation, a small Bluetooth icon will appear in the lower right corner of the computer. Open the icon and you can connect to other devices.If it cannot be used, please contact us to solve it for you, thank you.

【USB External Stereo Sound Adapter】USB audio adapter is adds a mono microphone-in and a stereo audio-out port to your computer through a USB port, which enables you to connect your existing headphones, headset, speakers, or microphone with 3.5mm jack to your PC through a USB interface. | 【Plug and play】 USB powered, no external power required. Built-in noise reduction chip, to avoid electromagnetic interference and make the sound clearer. | 【Wide application】Designed for 3.5mm jack and virtual 7.1 channel devices like headphones, headset or microphones that stop working or have issues with output cutting in and out. USB headset adapter is also suitable for sound card in the computer/laptop/desktop that dying or losing connection with motherboard. | 【Compact and Portable】Durable ABS material made the USB to headphone adapter compact and lightweight and aluminum foil shielded wire body to make the sound clearer. | 【Compatibility】Support USB 2.0 Full Speed (12Mbps) Specification, compatible with Windows 7/8/8.1 /10 /XP/Vista, Mac OS X 8.6 or above, macOS, Linux and other mainstream systems.

The USB to RS232 DB9 serial male cable adds a COM port to your computer via the USB interface, so you can make the most of your existing equipment or free up your existing computer serial connector. | The USB to serial adapter is designed for connecting serial devices such as DB9 equipped cash registers, PLAMs, CNC machines, temperature control devices, routers, ISDN terminal adapters, digital cameras, scanners, label writers, modems, cameras, card readers, PDAs and other serial device connections. Note: It is not compatible with cutting plotters and microcontrollers. | The DB9 serial cable to USB adapter uses the CH340 premium processor chip and supports 32 and 64 bit Windows 10/8/7/Vista/XP/Mac OS and above. Drive-free requires automatic update with network access. Plug and Play. | Tinned copper conductors and triple shielding ensure optimum data transfer rates. USB bus powered, no external power adapter required, supports your widest range of operating system compatibility and reliable data communication. | The USB to RS232 adapter interface is a 9-pin RS232 (9-wire pins 1-9: DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, RI) male connector, please ensure that your serial device has a 9-pin female port before purchasing.