USB to IrDA IR778: The Essential Adapter for Legacy Infrared Devices

USB to IrDA IR778: The Essential Adapter for Legacy Infrared Devices
USB to IRDA Converter

For most modern computers, infrared communication disappeared years ago. Built-in IrDA ports vanished from laptops, desktops, and mobile devices as USB, Bluetooth, and Wi-Fi became standard. Yet many specialized devices still rely on infrared communication for configuration, synchronization, and data transfer.

The IR778 USB to IrDA Adapter available from PCCables.com bridges that gap, allowing modern computers to communicate with legacy infrared hardware through a standard USB connection. The adapter is based on the MOSCHIP MCS7780 chipset and supports SIR, MIR, and FIR infrared communication modes with transfer speeds up to 4 Mbps.


Why Are IrDA Adapters Still Needed?

While consumer electronics largely abandoned infrared data transfer, many professional and specialty devices never transitioned to newer communication standards.

Common applications include:

  • Dive computers
  • Medical monitoring devices
  • Industrial handheld terminals
  • Scientific instruments
  • Legacy PDAs and Printers
  • Fitness and heart-rate monitoring equipment
  • Specialized diagnostic tools

For these devices, the challenge is often not the hardware itself. The challenge is finding a modern computer that can still communicate with them.


One of the most common modern uses for the IR778 is downloading dive logs from older SCUBAPRO and UWATEC dive computers.

SCUBAPRO's own infrared USB interface was designed specifically to transfer dive information from compatible dive computers into SmartTRAK and LogTRAK software. Supported models include numerous Galileo, Aladin, and UWATEC Smart-series dive computers.

Examples include:

  • Galileo Sol, Luna, Terra
  • Aladin Prime, TEC, Sport
  • Smart Pro, Com, Tec

For divers maintaining older equipment, an IrDA adapter often remains the easiest way to transfer years of dive history onto a modern computer.


Keeping Legacy Equipment Operational

Many organizations continue using reliable equipment long after manufacturers stop supporting it.

The IR778 helps extend the useful life of hardware that would otherwise become difficult or impossible to connect to modern systems.

Healthcare, Medical Equipment and Industrial Devices

Older monitoring and diagnostic devices often used infrared communication to safely transfer patient data without direct electrical connections. Additionally, many handheld data collectors, barcode systems, and field instruments used IrDA because of its simplicity and reliability.

Legacy Printers

Some older business printers also included IrDA support for wireless printing before Wi-Fi became common. A notable example is the HP LaserJet 6MP, a business-class laser printer that featured an infrared port for direct printing from compatible laptops and handheld devices. Since modern computers lack the built-in infrared hardware needed to communicate with them, an IR778 USB to IrDA Adapter can help restore connectivity to compatible infrared-equipped printing systems.

Legacy PDAs

Popular PDA platforms from Palm, HP, and other manufacturers frequently relied on infrared synchronization before USB became standard.

Fitness Devices

Early heart-rate monitors and training devices often used IrDA to transfer workout and performance data to desktop software. Popular examples include the Polar CS600X with Power, CS600X, RS800CX Pro Team, RS800CX Bike, RS800CX Multi, RS800CX Run, RS800CX, CS400, RS400sd, and related Polar training computers. For athletes and coaches still using these devices, an IrDA adapter can provide a convenient way to download workout history, performance metrics, and training data to compatible software on modern computers.


Broad Compatibility Through the MCS7780 Chipset

The PCCables IR778 adapter supports:

  • IrDA 1.0, 1.1, 1.2 and 1.3

And operates in:

  • SIR, MIR and FIR modes

Transfer rates range from 2.4 Kbps to 115.2 Kbps in SIR mode and up to 4 Mbps in FIR mode. The adapter requires no external power supply and connects directly through USB.

Driver support is available for Windows, MacOS and Linux, making it one of the more versatile IrDA solutions still available today.


PCCABLES.COM - PC Cables supplying the world with hard to find cables of all types: Computer, HDMI, Firewire, USB, DVI, Camera, GPS, Serial, Printer, Monitor & more
for PC Cables supplying the world with hard to find cables of all types: Computer, HDMI, Firewire, USB, DVI, Camera, GPS, Serial, Printer, Monitor & more

Check out our website for all your cable needs!


Why Choose the PCCables IR778?

The IR778 remains one of the few readily available solutions for connecting legacy infrared devices to modern computers.

Benefits include:

  • USB plug-and-play connectivity
  • No external power adapter required
  • Support for multiple IrDA standards
  • Compatibility with a wide range of legacy devices
  • MCS7780 chipset reliability
  • Windows, Mac, and Linux support

For organizations and enthusiasts maintaining older equipment, replacing an entire device simply because the communication interface is obsolete rarely makes sense. The IR778 provides a practical bridge between modern USB systems and legacy infrared hardware.


Available at PCCables.com

Since 1996, PCCables.com has specialized in hard-to-find connectivity products, legacy adapters, and specialty communication hardware.

Whether you're downloading dive logs from a Galileo dive computer, synchronizing a legacy PDA, or maintaining specialized equipment that still relies on infrared communication, the IR778 USB to IrDA Adapter offers a simple and reliable solution.

View the USB to IrDA Converter MOSCHIP MCS7780 Adapter at PCCables.com and keep your infrared devices connected.

PCCables.com Blog
Information on cables by PCCables.com! Shop now for all your cable needs: audio, video, adapters, printer, power, USB, chargers, PC, ethernet, keyboard, serial, firewire, network.

See more of our blog posts here!

Fiber Optic Cables in Data Centers: Critical Applications That Drive Modern IT Infrastructure
Modern data centers move enormous amounts of information every second. Cloud computing, virtualization, AI workloads, storage replication, and enterprise networking all depend on fast, reliable infrastructure capable of handling massive bandwidth demands with minimal latency. That is why fiber optic cabling has become the backbone of modern IT environments. Compared
Hard-to-Find Serial Interface Cables – Available at PCCables.com
Why Finding the Right Serial Cable Matters In a world dominated by USB and wireless connections, serial cables remain critical in industries ranging from factory automation to medical equipment. The problem? These cables can be nearly impossible to find in mainstream retail. At PCCables.com, we specialize in hard-to-find serial
Unmatched Ethernet Cable Selection Built for Professional Networks
Why Businesses Choose PCCables.com for Networking At PCCables.com, we know our business customers—integrators, IT departments, OEMs, and installers—need dependable, spec-compliant cabling solutions. That’s why our Network and Ethernet category carries a depth of inventory that generic retailers can’t match. Complete Cable & Accessory Lineup Each