Need to be able to write to old 7-pin MMS

Hi all. I have an old Samsung TV that uses one of the original 7-pin MMS cards to update its firmware, which I need to do. I looked everywhere and finally found one on eBay. Now I find that none of my card readers, even though they list MMS as a compatible card, will accept it - they all expect the more modern 9-pin cards.

Do any of you know of a particular reader or adapter that would allow me to either read/write it natively (7-pin) or to adapt it to 9-pin?

Thanks in advance for your help.