Want to add my 2nd 27" LED Cinema display (pre thunderbolt) to my 2012 I7 Mac mini. The 27" displays use the mini display port cable (male), but the 2nd port on the MM is HDMI. Been searching for a female mini display port to HDMI male cable, but it seems these are not made (lots the other way though). Realize the monitor will have to run at different display rate of 1980 by 1200, but that's OK as I run the first at 2048 by 1152 anyway. Any suggestions on a cable to allow the use of the 2nd LED display?