Eaton Tripp Lite Series USB-A to Serial Adapter Hub (DB9) - Keyspan, High-Speed (M/M), 4-Port, TAA

Experience seamless expansion of your serial universe with the Eaton Tripp Lite Series USB-A to Serial Adapter Hub. This four-port Keyspan-powered hub brings RS-232 connectivity to your computer through a single USB-A connection, simplifying multi-device setups in environments where legacy serial devices still drive critical workflows. From industrial controllers and POS terminals to lab instruments and networking gear, four independent DB9 ports let you attach multiple devices without juggling separate USB-to-serial adapters. Built for reliability in demanding settings, the hub delivers steady data transfer, plug-and-play ease, and cross-platform compatibility—paired with the assurance of TAA compliance for enterprise procurement. If you need a compact, durable solution that reduces cable clutter while maintaining peak performance, this 4-port USB-A to serial hub is designed to meet those demands with clarity and confidence.

• High-speed four-port RS-232 hub with DB9 connectors: Provides four independent RS-232 channels accessible through standard DB9 cables, enabling parallel data streams, simultaneous device control, and streamlined workflows. Each port supports commonly used serial configurations, allowing you to tailor baud rates, parity, data bits, and stop bits to match the requirements of diverse equipment.
• USB-A connection to host computer: Installs quickly via a USB-A port, delivering reliable power and data transfer without the need for external power adapters. The bus-powered design keeps your desk tidy and reduces clutter on crowded workstations, labs, or production floors.
• Driver and software support across major operating systems: Includes driver packages and configuration utilities that enable straightforward COM port emulation on Windows, macOS, and Linux. This cross-platform compatibility makes it easy to integrate with a broad range of software applications, terminal programs, and industrial control suites.
• Compact, durable design tailored for professional use: Built to withstand busy work environments, the hub combines a compact form factor with sturdy DB9 ports and a robust enclosure. Its design minimizes space usage on desks and equipment racks while maintaining dependable performance across long workdays and field deployments.
• Reliable, proven Keyspan technology for broad compatibility: Leveraging Keyspan’s trusted heritage in USB-to-serial products, the hub offers consistent driver support, stable port mappings, and straightforward installation. This reliability translates into fewer driver conflicts and smoother workflows across mixed hardware environments.

Technical Details of Eaton Tripp Lite Series USB-A to Serial Adapter Hub (DB9) - Keyspan, High-Speed (M/M), 4-Port, TAA

• Ports: 4 x DB9 RS-232 serial ports for direct connection to legacy devices.
• Interface: USB 2.0 High-Speed bus-powered hub, with no external power adapter required in typical usage.
• Data rate: Up to 921.6 Kbps per port, enabling fast, reliable serial communication for time-sensitive applications.
• Compatibility: Driver support for Windows, macOS, and Linux with COM port emulation and device mapping options.
• Compliance: TAA-compliant for government and enterprise procurement.
• Connectivity: USB-A host connection; four DB9 serial ports provide immediate access to four independent serial devices.
• Build: Durable enclosure designed for desk and lab use with protection for the DB9 interfaces during daily handling.
• Power: Bus-powered operation through the USB connection; no external power supply required for standard use.
• Hot-plug support: Supports hot-plugging of devices in many operating environments, allowing you to add or remove serial devices with minimal disruption.

how to install Eaton Tripp Lite Series USB-A to Serial Adapter Hub

• Step 1: Plug the hub into an available USB-A port on your computer or notebook using the included USB cable. Ensure the host has USB 2.0 or higher for optimal performance.
• Step 2: Install the latest drivers and configuration utilities. Use the installer provided by Tripp Lite or Keyspan’s support site to enable proper COM port emulation and port naming conventions.
• Step 3: Allow the operating system to recognize four new virtual serial ports. Open your system’s device manager (Windows) or equivalent utility on macOS/Linux to verify that four COM ports have been created and assigned.
• Step 4: Connect your RS-232 devices to the four DB9 ports using standard DB9 serial cables. Confirm that the devices are compatible with RS-232 signaling and verify handshake configurations as required (DTR/DSR, RTS/CTS, or no handshake).
• Step 5: In your application or terminal software, select the appropriate COM port for each device. Configure communication settings (baud rate, data bits, parity, stop bits, and flow control) to match each connected device’s requirements.
• Step 6: Test the setup by transmitting data to and from each device. Check for stable data transfer, accurate baud rates, and proper handshake behavior. If needed, adjust driver settings or port mappings to optimize performance and reliability.

Frequently asked questions

• Q: Does the hub require external power? A: No. It is designed to be bus-powered through the USB connection, drawing power from the host computer in standard operation.
• Q: Can all four ports be used at the same time? A: Yes. The hub provides four independent RS-232 channels, enabling simultaneous connections to multiple serial devices without interference.
• Q: Which operating systems are supported? A: Windows, macOS, and Linux are supported with the appropriate drivers and utilities. Check the latest driver package for your specific OS version and kernel.
• Q: How do I configure the COM ports? A: After drivers are installed, use your OS’s device manager or terminal software to assign and configure each COM port. You may need to adjust baud rates and flow control to match connected devices.
• Q: Is this hub compatible with USB-C hosts? A: Direct USB-C compatibility depends on your system. If your computer uses USB-C only, you may need a USB-C to USB-A adapter to connect the hub.