Utilizes USB 2.0 for backward compatibility with USB 1.1 ports.
The is not a product for the average consumer. It is a specialized tool for industrial maintenance, vintage computing, and embedded systems debugging. While the world has moved to wireless protocols with greater range and bandwidth, IrDA retains two unique advantages: it is immune to RF interference (critical in hospitals and on factory floors) and it requires no pairing or encryption negotiation—just line-of-sight and a compatible protocol stack. U2IrDA Mini 4 MBPS FIR USB IrDA 20
In an era of wireless dominance, Infrared (IrDA) technology remains a critical component in specific industries, from medical equipment to industrial metering. The is the ultimate solution for modern computers lacking serial or infrared ports, offering a seamless, high-speed bridge to legacy devices. Utilizes USB 2
| Feature | Specification | |-----------------------|------------------------------------| | Form factor | USB Type-A mini dongle | | IrDA standard | IrDA 1.1 (FIR up to 4 Mbps) | | Supported speeds | 9.6 kbps, 19.2 kbps, 115.2 kbps, 576 kbps, 1.152 Mbps, 4 Mbps | | Transceiver | 875 nm IR LED + PIN photodiode | | Maximum range | 0.2–1.0 m (depending on angle) | | Host interface | USB 1.1/2.0 full speed (12 Mbps) | | Power | Bus-powered (< 100 mA) | | Chipset | SigmaTel STir4200 or equivalent | While the world has moved to wireless protocols
The prefix "U2" typically denotes "USB to IrDA." This indicates a converter chipset that translates USB protocol signals into IrDA-compliant infrared pulses. The "Mini" descriptor points to the physical form factor—small, lightweight, and designed for direct USB-A connection without cumbersome cables.
Effective communication range is approximately 1 meter (3.3 feet) with a 30-degree cone of transmission.
The U2IrDA Mini is a compact USB-to-Infrared (IrDA) bridge. It transforms a standard USB port into a fully functional infrared port, allowing your modern laptop or desktop to talk to IrDA-compliant devices without the need for bulky serial cables. Key Specifications