This feature contains nodes to connect to FTP, HTTPS and SSH
file systems, as well as nodes to support URIs and binary
objects.
Extension 
KNIME Basic File System Connectors
Included nodes & related workflows
Legal
Copyright by KNIME AG, Zurich, Switzerland
Update site information
KNIME Analytics Platform 4.3 Update Site, Version 4.3.0
http://update.knime.com/analytics-platform/4.3
In case you can’t install the extension via drag & drop, please check that the update site is activated.