USBH232-MF2U | Dual RS232 Adapter with 2-Port USB Hub

The flykantech.com USBH232-MF2U USB To RS232 Adapter is a professional USB Serial Hub designed for industrial and multi-device connectivity applications. This Multi-Port Serial Adapter integrates 2 X Independent RS232 serial ports and a 2-Port USB 2.0 Hub into a single device, providing a structured and efficient solution for connecting multiple serial devices and USB peripherals to one host system. Compared to conventional setups using multiple USB to serial converters together with external USB hubs, this integrated solution Reduces Hardware Complexity, minimizes connection points, and improves overall system stability while optimizing USB port usage in industrial environments. Each RS232 port operates on an Independent Controller Architecture, ensuring reliable dual serial communication without bandwidth sharing. This Dual RS232 USB Adapter supports Parallel Workflows, allowing one device to be controlled while another is monitored or debugged simultaneously. It is suitable for industrial control systems, device development, POS system integration, and system integration scenarios where stable multi-port serial communication is required. The independent design ensures consistent performance under continuous operation. Per-port TX / RX / Power LED Indicators provide real-time visibility of communication activity, enabling faster diagnostics and reducing troubleshooting time during installation, maintenance, and system testing in professional environments.

The integrated USB 2.0 Hub provides USB expansion capability, allowing additional peripherals such as USB dongles, storage devices, or input tools to be connected directly. In device-dense environments, this built-in USB hub Eliminates The Need For External USB Expansion, reduces cable complexity, and lowers the number of potential failure points. It also enables a more consolidated interface structure, making this USB serial hub suitable for system integrators managing multiple device types within a single workstation or industrial control unit. The device features a Durable Metal Enclosure to enhance mechanical strength and improve resistance to electromagnetic interference, making this Industrial USB To RS232 Adapter suitable for demanding environments. A USB Type-B Interface is used for both power and data transmission, ensuring a secure and stable connection in long-term operation. Compatible with Windows, Linux, And macOS, this dual RS232 USB converter supports flexible integration into a wide range of industrial systems, automation equipment, and professional applications.

■ 2 x Independent DB9 RS232 Ports – Dedicated chip per port for stable communication
■ 2 x 9-Pin RS232 Ports (Male) – Connect multiple devices simultaneously
■ LED Indicators – TX/RX/PWR for each port
■ No I/O or IRQ Required – Plug-and-play
■ High-Speed Serial – Up to 921.6 Kbps
■ 512-Byte FIFO Buffer – Efficient data transfer
■ Multiple Data Formats – Odd/Even/Mark/Space/None parity, 5–8 data bits
■ USB Bus-Powered – No external power needed
■ Cross-Platform – Windows, macOS, Linux

Interface
Input: 1 x USB Type-A
Output: 2 x RS232 9-pin D-Sub (Male)
Supported Standards: USB 2.0 / 1.1, RS232
Bus Type: USB 2.0
Chipset: PL2303-GC

Serial Communication
Protocol: RS-232
Max Baud Rate: 921.6 Kbps
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: ven, Odd, None, Space, and Mark
FIFO Buffer: 512 Bytes

Indicators
3 x LEDs for Serial Ports (TX,RX,PWR)
3 x USB LEDs

Power
Power Source: Bus-Powered (no external power required)

Compatibility
Windows: 10, 11, 11 ARM
macOS: 10.9 – 10.15, 11.0, 12.0, 13.0, 14.0, 15.0, 26.1
Linux: 4.15.x and up (LTS versions only)

Physical Properties
Housing Material: Plastic
Dimensions: —
Cable Length: Detachable Design
Net Weight: —
Operating Temperature: 0°C – 40°C
Storage Temperature: -20°C – 60°C
Humidity: 0 – 80% RH (non-condensing)