UGREEN USB-A 2.0 to DB9 RS-232 Male Adapter Cable 1.5m – CR104

The UGREEN CR104 bridges modern computing interfaces with legacy serial devices. This specialized adapter cable converts USB connectivity to RS-232 serial communication, enabling critical connections to industrial equipment, test instruments, and specialized hardware.

Advanced Protocol Conversion Technology

The CR104 integrates sophisticated chipset technology that ensures reliable signal conversion between USB and RS-232 standards. Its internal circuitry manages proper handshaking protocols and signal timing essential for stable serial communication. Furthermore, the adapter supports data rates from 75bps to 921600bps, accommodating various device requirements across industrial and scientific applications.

UGREEN engineers the CR104 with precise signal routing that maintains data integrity throughout the entire communication path. The adapter supports all standard RS-232 signals including:

• TXD/RXD for primary data transmission
• RTS/CTS for hardware flow control
• DTR/DSR for terminal ready signaling
• DCD for carrier detection
• RI for ring indicator functionality

These technical elements ensure compatibility with the full spectrum of serial devices requiring complete signal implementation. Additionally, the adapter maintains proper voltage levels for reliable communication with sensitive equipment.

Durable Industrial-Grade Construction

The UGREEN CR104 features reinforced connection points designed to withstand frequent use in technical environments. The strain relief collars prevent internal conductor damage during deployment and routine operation. Moreover, the cable jacket provides necessary flexibility while resisting environmental factors that could compromise performance.

Key construction elements include:

• Gold-plated contacts that resist corrosion in industrial settings
• Robust DB9 connector housing built to withstand repeated connections
• Shielded cable design that minimizes electromagnetic interference
• Reinforced USB connector withstanding thousands of insertion cycles

Through these quality construction features, the CR104 delivers consistent performance even in challenging operational environments. Consequently, technicians and engineers experience reliable functionality throughout extended service life.

Universal Compatibility Profile

The UGREEN CR104 provides exceptional device compatibility through its certified driver architecture. The adapter supports operation with:

• Industrial control systems and PLCs
• Scientific instruments and laboratory equipment
• Point-of-sale systems and barcode scanners
• Legacy modems and communication devices
• Medical equipment and specialized healthcare hardware

The CR104 utilizes the widely-supported Prolific PL2303 chipset, ensuring broad operating system compatibility. This architecture works seamlessly with Windows, macOS, and many Linux distributions, providing essential flexibility for cross-platform deployment scenarios.

Ideal User Profiles

The UGREEN CR104 particularly suits:

• Industrial systems integrators connecting modern computers to legacy equipment
  • The reliable signal conversion ensures consistent communication with sensitive control systems
  • The 1.5-meter length provides necessary reach in complex industrial installations
• Laboratory technicians maintaining specialized scientific instruments
  • The comprehensive signal support enables proper communication with precision equipment
  • The durable construction withstands the rigors of laboratory environments
• IT professionals supporting legacy hardware systems
  • The broad operating system compatibility facilitates support across varied computing environments
  • The adapter eliminates the need for dedicated serial port computers in modern facilities

Technical Specifications

Physical Attributes

• Length: 1.5 meters (4.9 feet)
• Color: Black
• Connector Types: USB-A Male to DB9 Male (9-pin)
• Cable Diameter: 5.5mm

Performance Parameters

Data Communication

• Chipset: Prolific PL2303
• Data Rates: 75bps to 921600bps
• Flow Control: Hardware (RTS/CTS), Software (XON/XOFF)
• Signal Support: TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI, GND

System Requirements

Operating Systems

• Windows: XP/Vista/7/8/10/11
• macOS: 10.6 to 12.x (driver required for newer versions)
• Linux: Kernel 2.6.25 or later with appropriate modules

Electrical Specifications

Power Characteristics

• Interface: Bus-powered (No external power required)
• Maximum Current Draw: 100mA
• Output Levels: RS-232 compliant (±5V to ±15V)
• ESD Protection: ±15kV air, ±8kV contact

Package Contents

Included Items

• UGREEN CR104 USB-A 2.0 to DB9 RS-232 Male Adapter Cable 1.5m
• Driver Mini-CD
• Quick Start Guide
• 18-Month Warranty Card