SIR
FIR
serial dongle
USB dongle
PCMCIA cards
PCI cards
You may find a survey of Linux/IrDA capable devices at [Reference: Load balancing] .:: podcasts.apple.com ::. .:: rysowanie.phorum.pl ::. .:: www.kzntreasury.gov.za ::. .:: www.arc.agric.za ::. .:: cloud.anylogic.com ::. .:: management.ju.edu.jo ::. [Reddit: Computer vision Discussion] TuxMobil.