showex, there is no SSD drive that will work.
You need to look back to the old days where 320gb drives were the latest and greatest. And then you need to figure out which one will work. (lists are here on DHC...... hint... try looking at post #3).
The 9241 will not even give more recording space when a firmware recognized 500gb drive is installed. It still only gives 320gb recording time.
Summary.......the 9241 is the worst and least capable dual tuner HD receiver Bell has ever supplied.