ACT-IR4020U is an advanced wireless Fast Infrared USB adapter designed to replace the serial port or FIR/VFIR controller based SIR/MIR/FIR/VFIR wireless peripheral through Hi-Speed USB port. Taking advantage of the true plug-and-play nature and the high bandwidth of USB, ACT-IR4020U offers the easiest conversion of existing wireless to the legacy-free personal computer platform with the following features:
Features:
- Fully compliant to USB specification 2.0
 - Fully compliant to IrDA Serial infrared Physical layer specification 1.4
 - Full-speed (16Mbps, VFIR for IR4020U) USB device operation
 - Bus-powered device. Obtains power from USB port. No external power supply required.
 - Low power consumption in standby mode (Standby current is less than 0.5 mA)
 - Does not occupy PC's COM or Parallel port and has no complicated hardware port and resource setting or conflict resolution, such as IO address / IRQ / DMA numbers.
 - True PNP (Plug And Play) device. Without re-installing USB driver when re-plugged in.
 - Adapter just "fingersized": 1.85"L x 0.7"W x 0.35"H, 2.08 oz (6.0 gr)
 
System Requirements:
- Windows 98SE/ME/2000/XP. Driver for MacOS available from Sigmatel.
 - One unoccupied USB port, minimum USB 1.1, preferably Hi-Speed USB 2.0 for the best performance.
 
Package Contents:
- Blister Package
 - IrDA VFIR Adapter
 - USB extension cable
 - Driver & Manual CD-ROM
 
Further Informations:
The IC used in this model is the Sigmatel STIR4220. Please download drivers for Linux and MacOS directly from: http://www.sigmatel.com/support/developer/downloads.aspx#wirelessir
Please note that this driver does not support the new Intel based Mac systems! Therefore this IrDA adapter will only work with the classic PowerPC Mac.

