The DataPro 6649 series cable is a replacement cable for a Cisco
CAB-SS-449MT cable, one of the Cisco family of "Smart Serial"
The router end terminates in a FoxConn High-Density 26-pin male
connector (DF26M), the WAN end terminates in a 37-pin D-Sub type connector (DB37).
Custom lengths are available, up to a maximum length of 10 feet.
Available only in a spectacular blue color.