This is a USB A Male to RS232 DB9 Female Serial Converter Cable. Note that this model does not contain a chip it is just an adapter cableSuitable for connecting computers and various serial devices such as cash registers printers access control systems scanners barcode printers LED displays etc. Suitable for multiple systems Windows 10 8.1 8 7 Vista XP Linux and Mac OS X macOS Made of PVC special grade to ensure signal data transmissionCable length: 1.8M /6 feet