The Blackmagic Videohub is an HD-SDI/SDI router, that is sold at a very aggresive (low) price. As you may know, AVID does not make a video router (neither does AJA or any other capture card manufacturer). Why would you question this ?
You can purchase HD-SDI routers from countless companies, that will all do the same job as the Videohub – companies like Sierra Video, Pesa, Leitch, Miranda, Evertz, and countless others, but they will ALL be dramatically more money than the Blackmagic Videohub. Exactly what kind of “approval” are you looking for ? Do you want AVID to certify the Blackmagic Videohub for use with it’s products ?
AVID would not certify Leitch or Grass Valley or NVision (which are the most expensive routers), so why on earth would they certify Blackmagic. If you are on a budget, you can’t beat this product.
Bob Zelin