About: http://webisa.webdatacommons.org/426955347

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	And, as someone else said, there are just too many devices that still use the RS232 standard for the manufacturers to stop making them altogether very soon.Yes, there are sources now, mostly cards and dongles.
http://www.w3.org/ns/prov#wasQuotedFrom	eham.net