Wireless infrared serial communication adapter , RS232 serial original infrared adapter, support for IrDA and RAW-IR - AliExpress
RS232 dB9 Serial Infrared Transceiver Irphy 1.0 Sir IrDA Tfbs4711 up to 115.2kbps Link Distance 1m Optical Probe - China RS232 dB9 Serial Infrared Transceiver, Irphy 1.0 Sir IrDA Tfbs4711 | Made-in-China.com