Description

product name:

USB to COM/USB-RS232/USB to serial cable/USB to 9-pin serial port/HL340/Quartz crystal oscillator

Features:

Easy installation, no need for external power supply and physical drive

Scope of application:

This product can easily convert the computer USB interface to a universal serial port, providing a fast channel for computers without a serial port, and using this product is equivalent to turning a traditional serial device into a plug-and-play USB device.

Supports various types of single-chip microcomputers, single-chip STC download, LED screen control card, MODEM, ISDN terminal adapter communication suitable for computers or notebooks with USB ports.

Application platform:

Support USB1.0/1.1 specification, compatible with USB2.0 specification, support full-speed transmission mode 12MBPS, support Win98, 98SE, Me, 2000, XP, Mac OS8.6, vista, win7-32, 64-bit.

Installation Notes:

1. Run the driver CH340.EXE file to install

2. Connect the USB serial cable to the USB interface of the computer and install the driver automatically

3. After the installation is successful, the COM port appears in the device manager

Total line length: about 90CM shielded wire

Suitable for desktop expansion or notebook use (Note: Some computers may have incompatibility

If it can be used, if you encounter such a situation, you can return the goods, but the round-trip freight is not refundable)

Judging from our sales feedback, this serial line cannot be connected to a plotter, and a plotter cannot be used. Tax control

The device is not good, these three.

Overview:

The USB to RS232 conversion cable makes it easy to connect USB and serial devices, so that the serial devices have

Plug and play, hot plug and other functions. It can meet the needs of laptops to connect various serial devices, applicable

For communication with mini type, digital camera, MODEM, ISDN terminal adapter, LED control

Card;

Features:

Single-chip 340 crystal 12M USB port to serial port communication

USB1.1/2.0 compatible solution

Built-in 128 byte TX /512 byte RX buffer

Support automatic handshake protocol

Support Win95/98/98se/ME/200O/XP/win7 32bit 64bit/Vsita/Support full speed

USB data transfer protocol

Anti-electromagnetic interference design

Data Exchange Application