For a complete listing of the DELL PowerEdge R640 and R660xs regulatory information, navigate to the following:

PowerEdge R660xs - https://www.dell.com/support/home/en-us/product-support/product/poweredge-r660xs/docs and select Regulatory Information from the left pane.

PowerEdge R640 https://www.dell.com/support/home/en-us/product-support/product/poweredge-r640/docs and select Regulatory Information from the left pane.