The UGREEN 20201 (CR104) USB to DB9 Female RS-232 Serial Adapter Cable is a specialized bridge cord designed to connect legacy serial peripherals to modern computers lacking built-in COM ports. Unlike standard male-terminated adapters, this model features a 9-pin female connector interface, allowing it to hook directly into equipment using male DB9 ports without requiring a separate gender changer.
- Interface Layout: Engineered with a USB 2.0 Type-A (Male) connector on one side and a DB9 Serial (Female) port with integrated thumb-screws on the other.
- Core Chipset Processing: Built using the industrial-grade Prolific PL2303 chipset to handle hardware handshaking protocols and secure glitch-free, stable serial communication.
- Transmission Bandwidth: Supports reliable serial data transfer speeds scaling up to a maximum rate of 1 Mbps. [1, 2]
- Signal Shielding & Length: Features a 1.5-meter (approx. 5 feet) cable core crafted from tin-plated copper wires bundled under triple-layer insulation to minimize electromagnetic signal distortion.
- Broad Peripheral Use: Optimized for programming, diagnostics, and data logging on industrial hardware, network routers, barcode scanners, GPS systems, PLCs, serial modems, and cash registers.
- Bus-Powered Architecture: Draws all required operating power directly through the host computer's USB port, removing the need for bulky external wall adapters.
- Cross-OS Compatibility: Offers active support for Windows (fully plug-and-play on Win 8, 10, and 11), macOS, and Linux kernels.
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