The device includes a plastic window with IR filtering, typically colored dark red/black. It is marketed under names like “U2IrDA Mini” or “USB IrDA 20” by various Chinese OEMs.
: Provides a wireless connection over a distance of up to 1 meter within a 30° viewing angle . U2IrDA Mini 4 MBPS FIR USB IrDA 20
macOS dropped IrDA support after OS X 10.6 Snow Leopard. For modern versions (10.12+), you must run a Linux virtual machine (VMware or VirtualBox) with USB passthrough or resort to a serial terminal connecting to legacy hardware via a different protocol. The device includes a plastic window with IR
: Extremely portable, often measuring around 50 x 18 x 10 mm. Operating System Compatibility U2IrDA Mini 4 MBPS FIR USB IrDA 20