I had to remap the Power7 server without the HMC. This null modem cable along with the serial to USB cable allowed my Windows 10 laptop to work with Putty as a console. Nothing more to say other than that it worked perfectly.
Pros
Ultra-thin, low-profile design makes it flexible, eliminates clutter and saves space; has an RJ-45 connector and a 9-pin D-sub DB-9 connector