Look, there are a lot of different shopping scenarios. Maybe I know that I need a right-angle adapter from HDMI male to HDMI mini male. Think about the two options here:
1) Go to Amazon (or Monoprice, or whatever - it's online vs local that I'm talking about here), search for "right-angle adapter from HDMI male to HDMI mini male", and look through the result photos until you find something that looks correct, most likely somewhere on the first page. If it were a more expensive item, maybe you'd spend an extra minute checking the ratings, reviews, and questions. Either way, you find exactly what you need by searching for an exact descriptive phrase.
2) Call some local shop, and have this conversation:
A) "Hi, I'm looking for an HDMI cable, but it needs to be a certain shape and size, do you have a selection of those?"
B) "Sure, I think so, what do you need exactly?"
A) "Well, it's HDMI male on one side, HDMI mini male on the other side, and the mini side needs to have a right angle connector. I need it to be at least a foot long, ideally not much longer than that."
B) "Ok, let me go check on that..."
A) [wait a little bit]
B) "I have a few options here, was that a right angle on the mini side or the full-size side?"
A) "Mini side"
B) "Ok I don't think we have exactly that, but..."
Then, repeat as many times as you can stand with other stores.
This isn't some theoretical example. Something like this happened to me a few years ago, and I made a conscious decision to use online merchants more often because it's an easy trade to make to regain a bit of time in your life.
