AVerMedia carrier boards and frame grabbers

I’ve been looking at AVerMedia’s embedded vision solutions for TX1/TX2 here:
and here:
Specifically the EX731AA-N1 carrier
and the CN311-H Video capture card.

I was also hoping to add an SSD along side the CN311-H on the expansion card of the EX731AA-N1.

I haven’t heard or seen any info regarding this combination and I’m wondering if anyone else has tried to get this working.

I’ve been quoted about $600 for the AVerMedia components and I want to make sure they are going to work before I buy.

I don’t know if driver source code is available but AVerMedia seems very helpful and supportive but I haven’t started development yet so I’m not sure how well they support that.

Any further info and advise or comments will be appreciated.