Sorry, I just saw that the picture didn't show and I couldn't find the edit feature. Here's the adapter.
SlingBox.jpg 85.4 K
Thanks for posting in the forums! I'm sorry to hear you're having trouble getting HD quality when connecting to your Slingbox.
In regards to your question about upload speed, please take a look at this article:
Also, the link below provides information about the Slingbox 350 that does also indicate that it supports HD streaming:
Hope this helps!
The Sling Moderation Team