Ugreen CR104 USB to RS232 DB9 Serial Adapter 1.5m

Ugreen CR104 Serial Adapter

The Ugreen USB RS232 Adapter functions as a dedicated interface bridge for connecting serial-based peripherals to modern computer systems via a standard USB Type-A port. This 1.5-meter cable utilizes the Prolific PL2303 chipset to maintain high-speed data integrity between the host and the 9-pin DB9 interface. Consequently, network engineers can interface with console ports, PLCs, and industrial machinery without requiring native serial ports on modern workstations. The architecture supports standard RS-232 protocols, ensuring seamless communication with legacy hardware. Additionally, the device features a robust build designed for professional environments where uptime is critical.

Key Features

• Gold-Plated Connectors
  The interface utilizes gold-plated contacts to prevent oxidation and ensure reliable signal transmission over long deployment cycles.

• Prolific PL2303 Chipset

  • Provides hardware-level signal conversion for low latency.
  • Supports programmable baud rates for various device requirements.
  • Includes internal buffers for upstream and downstream data flow.

• Double Shielding Architecture
  The cable incorporates aluminum foil and tinned copper braiding to mitigate EMI and RFI noise during transmission.

• Full RS-232 Signal Support
  This converter supports the complete serial protocol including DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, and RI signals.

Specifications

What’s in the Box

• 1 x Ugreen USB to DB9 RS-232 Serial Cable (1.5m)
• 1 x Driver CD (for legacy systems)
• 1 x User Manual

Why Choose This Interface Converter

• The 1.5-meter length provides sufficient reach for rack-mounted equipment or floor-standing industrial controllers. Consequently, technicians do not need to stay immediately adjacent to the hardware during diagnostics.
• The robust PVC jacket protects internal conductors from physical stress in demanding workshop environments. Therefore, this tool remains a standard requirement for field engineers managing legacy infrastructure.
• This serial link ensures stable connectivity for satellite receivers, digital cameras, barcode scanners, and lab equipment. It operates across major operating systems including Windows 11 and various Linux distributions.
• The unit draws minimal power directly from the USB bus without requiring external power adapters. This makes it a highly portable solution for mobile technicians and network administrators.