【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.

VGA to HDMI Converter，the adapter with 3.5mm audio port can transport audio and video from VGA compatible device to a monitor or projector with HDMI port in high speed transmission rate, Travelly size tuck this lightweight gadget into your bag. | Video and Audio Synchronously: The DB15(VGA) Male to HDMI Female adapter can support full HD video resolution of 1080p (1920 x 1080/60Hz) and 3.5mm audio transmission. | Plug and Play: The VGA to HDMI adapter is easy to connect and easy to use without an amp driver. The interface is fixed with screws, compact and not loose. | Universal Compatibility: VGA to HDMI female adapter work with PC, laptop, TV,TV-Box and other VGA output devices. HDMI port can be connected to projectors, HDTV, monitors/Displayer and other device with HDMI port. | One-way transmission: The ZY5621 chip in the adapter only supports conversion of VGA signal and output to HDMI display device, but does not support conversion of HDMI signal into VGA signal. And the connection needs to be plugged into a USB cable for power supply before use.

YACSEJAO VGA to HDMI adapter is able to convert VGA& Audio analog signal on PC or Laptop to HDMI digital signal at a resolution up to 1080P. And then display on an HDMI monitor, projector, or HDTV via HDMI cable . | Save the cost of upgrading with this VGA to HDMI connector. Simply plug your existing VGA-equipped laptop, PC or other device into your newer HDTV or HDMI-equipped projector to start sharing content. | With this VGA to HDMI converter, you will not have to sacrifice image quality. It supports resolutions up to 1920x1080 (1080p), providing sharp and crisp image quality. | Plug and Play.The USB connector MUST be connected to get power for the bulid-in active VGA-HDMI chipset.Compatible with Windows, Linux OS. | Only from VGA-to-HDMI Displays (TV/monitors).It only converts from VGA (analog signal output ) to HDMI (digital signal).Can Not be used as a HDMI-to-VGA converter cable.For HDMI-to-VGA cable.