**Product Specifications:**
**Brand:** UGREEN
**Model:** US229
**Product Name:** USB to RS232 Serial Cable
**Interface Material:** Nickel-plated
**Core Material:** Tin-plated oxygen-free copper
**Transmission Speed:** 1Mbps
**Outer Material:** Eco-friendly PVC
**Length:** 1m at front end, 0.5m at back end
**Baud Rate:** 75-128000bps
**Warranty:** 1 year
**USB Interface:** USB 2.0
**Packaging:** Stylish color box
**Serial Port Interface:** Male head nut
**Product Features:**
Supports connection between computers and various serial devices (excluding engraving machines and microcontrollers) such as cash registers, PLCs, access control systems, barcode printers, scanners, PLAMs, CNC machines, external modems, tax control machines, handwriting boards, temperature control devices, LED displays, programming machines, touch screens, industrial instruments, industrial control machines, etc.
Compatible with multiple systems including Windows XP, Windows Vista, Windows 7, Windows 8, Linux, Windows 10, Mac OS, and Linux.
Stable signal transmission with professional chip for durability and performance.
Energy-efficient with power management to reduce idle device energy consumption.
Remote wake-up feature allows starting devices remotely from a shutdown state.
Standard DB9 pin interface ensures stable signal transmission.
Durable split-end design with anti-stretch feature for longer cable lifespan.
Eco-friendly PVC outer covering for durability and flexibility.
**Package Contents:**
UGREEN USB 2.0 to 4-Port RS232 Adapter Cable
USB 2.0 to Dual Serial RS232 Adapter Cable
One-to-four packaging
One-to-two packaging
**FAQ:**
**Q1:** How to use the product?
**A1:** Insert the USB end into the computer's USB port, let the computer automatically install the driver, and then connect the serial device.
**Q2:** Is driver installation required?
**A2:** Plug and play for Win8 and above (driver updates automatically); Win7 requires driver installation (driver CD included in the package).
**Q3:** Can the serial port be modified?
**A3:** Yes, the port number can be modified in the device manager settings.
**Q4:** What to do if the product does not work properly?
**A4:** Try re-plugging the USB port, restarting the power, checking the motherboard interface, or testing on another computer.
**Driver Installation Guide:**
For Win8 and above: Plug and play (driver updates automatically).
For Win7 and below: Install the driver using the driver CD included in the package.
**Port Configuration:**
1. Connect the USB interface of the product to the computer's USB port.
2. Connect the other end of the DB9 head to the device and set the corresponding communication port and parameters in the device's application software.
**Port Modification:**
Connect the product to the computer's USB port and install the driver program. Then, modify the port settings in the device manager under "Other Devices."
**Note:** The provided content has been summarized and organized into product specifications in English.
