USB to RS232 Serial Adapter Cable DB9 Male USB 2.0
Category: USB to RS232 Serial Adapter
USB to RS232 serial adapter converts a standard USB-A port into a DB9 male RS232 serial connection for industrial equipment, control systems, test instruments, POS hardware and other legacy serial devices.
The adapter is powered directly from the USB port, so no external power supply is required. Its integrated conversion circuitry provides USB-to-RS232 communication with automatic data-flow control, making it suitable for both industrial and commercial serial applications.
Key Features
• USB-A to RS232 DB9 male serial converter
• USB 2.0 interface
• Standard DB9 male RS232 connector
• Manufacturer-stated transmission range: 300 to 460,800bps
• USB powered – no external power supply required
• Automatic transmit and receive control
• Integrated USB-to-serial communication circuit
• ±15kV ESD protection according to manufacturer specification
• Operating temperature: -40°C to 85°C
• Relative humidity: 5% to 95%
• Plug-and-play design with compatible systems
• Power and data-flow indicators show operating status
Compatible Systems
Manufacturer-listed compatibility includes:
• Windows 98 / 2000 / XP / Vista
• Windows 7 / 8 / 10
• Linux
• Mac
Typical Applications
• Industrial control equipment
• RS232 programming and configuration
• POS and till systems
• CNC and automation equipment
• Laboratory and test instruments
• Serial printers
• Barcode scanners
• Modems and communication equipment
• Legacy DB9 serial devices
Connector Configuration
Connector A: USB Type-A Male
Connector B: DB9 Male
Interface: USB 2.0 to RS232
Power: USB bus powered
Compatibility Note
Please confirm that your equipment requires an RS232 DB9 connection before ordering. RS232, RS485 and RS422 are different serial standards and are not interchangeable without the correct converter.
Package Contents
1 × USB to RS232 serial converter cable
Completing your purchase
Take a moment to review your selection and total before payment.
Preparing your order
Please consider both preparation and transit when planning your purchase.
Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
View policyRequesting a refund
Contact the store with your order details so your request can be reviewed.
Please contact us for the refund processing timeframe before returning an item.
View policyDelivery arrangements
The available delivery services and charges are listed below.
Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
View policyBefore arranging a return
Speak with the store before arranging a return shipment.
United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
View policy
