I think you will be pleased with the USB extender if you were to get it. I ordered another one since I have an older webcam that I'm probably going to use in conjunction with the new one. By the way, here are the photos of the outdoor enclosure that I designed and built.
Materials used:
>1 4*4 Vinyl fence post for the main housing. I cut it to about a 7" length
>1 piece of wood corner molding used for inside housing to allow a screw on each corner to hold plexiglass
>5 minute epoxy to hold molding inside of housing. I roughed the inner housing up with sandpaper a little bit so it would hold better.
>1 piece of thin plexiglass...I think it was a 1/8" and was inexpensive
>Stainless steel screws to hold plexiglass (won't rust)
>Stainless steel bolt and wing nut to allow rotation on the main bracket. I wanted to use a wing nut so I could take if off if I ever needed to service anything inside plus I could rotate to different direction.
>1 shelf bracket to hold main housing.
>Tapcons to hold bracket to wall.
>Clear silicone to help in waterproofing the main housing around the edges of the plexiglass.
I bought all of these items at home depot and the most expensive part was the Vinyl fence post. ($20 bucks) Some other tools were used in the construction that I already had. (Dremel tool and jigsaw). Total time for construction of the enclosure took me about 2-3 hours. I figured by getting 5 minute epoxy this would save me some time.