CableConnectivity Details Length:  1.3 ftConnectivity Details Type:   Serial cableBrand:   ATENCompatibility:   PCManufacturer:   Aten TechnologiesProduct Line:   ATENInterface ProvidedConnector Type:  9 pin D-Sub (DB-9)Interface:  RS-232Type:  RS-232Type:  SerialInterface Required connector Type:  4 pin USB Type AType:  USBNetworkingCabling Type:  Serial Connectivity Technology:  Wired Data Link Protocol:   , USB Data Transfer Rate:  500 Kbps Form Factor:  ExternalInterface Type:  USB Type:  Serial adapterForm Factor: Integrated  Ports Type: RS-232