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EC Buying also focuses on providing customers with comprehensive services.
We have a professional sales team, which can provide customers with timely and accurate product consultation, and after-sales service.
We always put customers at the center, and strive to create greater value for customers.
EC Buying, are always committed to innovation and breakthroughs in the field of electronic components, providing electronic component products to global customers with a professional, focused, and focused attitude.
We have a wide range of product lines, covering various electronic components such as module, development board, resistors, capacitors, diodes, transistors, integrated circuits, etc., meeting the needs of different industries and fields.
USB to DB9 RS232
- Product features: easy installation, no external power supply, and physical drive required
- Scope of application:
- This product can easily realize the conversion between the computer USB interface and the universal serial port, providing a fast channel for the computer without a serial port, and using this product is equivalent to turning the traditional serial port device into a plug-and-play USB device.
- Supporting various models of single-chip microcomputer, single-chip STC download, LED screen control card, MODEM, and ISDN terminal adapter communication is suitable for computers or notebooks with USB ports.
- Application platform: Support USB1.0/1.1 specification, compatible with USB2.0 specification, support full-speed transfer mode 12MBPS, support Win98, 98SE, Me, 2000, XP, Mac OS8.6, vista, win7-32, 64-bit.
- Installation instructions:
- 1. Run the driver CH340.EXE file to install
- 2. Connect the USB serial cable to the USB interface of the computer, and automatically install the driver
- 3. After the installation is successful, the COM port appears in the device manager.
Easily convert USB 2.0 to Serial 9-Pin RS232 with this plug-and-play USB to 9-pin serial cable, no external power supply required
Fast installation with no physical drive needed, providing a seamless connection for computers or notebooks with USB ports, Support various models of MCU, MCU STC download, LED screen control card, MODEM, and ISDN terminal adapter communication
Compatible with USB1.0/1.1 and USB2.0 specification, supporting full-speed transfer mode 12MBPS for efficient data transfer, Enjoy easy installation by running the CH340.EXE driver file and connecting the USB serial cable to your computer's USB interface
Eugene K.
2025-08-24 10:05:46
Great
Customer
2025-07-29 13:42:09
Everything was prrfect. Cool color!!
Jeff M.
2025-06-28 17:49:14
USB port did not see it when I plugged it in. DOA. Should have recognized it as a peripheral and asked for a driver at least, nothing... Tried on two laptops.
Mike Kronk
2025-05-06 19:37:46
AS ADVERTISED.
Wayne & Jackie Seltzer
2025-04-23 14:57:53
Uses the CH340 USB serial driver, which I had already installed for another device.I see reports of the CH340 driver having installation and BSOD issues on Windows 11.Maybe I was lucky?
Lou
2025-03-15 15:04:01
Bought this to use with a super chips micro tuner didnt think it would work but took a chance and it works great!
Customer, Edna Kelly
2025-02-11 19:46:24
I am using this to connect an older external floppy drive to my computer. Works nicely.
John Masoner
2025-01-29 10:26:01
The cable does not include the driver, it does not include instructions on were to find the drivers... Without the drives the computer doesn't even know there is a USB cable plugged in.
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