Default Attachable battery case / power jacket (skin) for S5

Does any one has any experience with power jacket / skin for S5? Brando offers one http://shop.brando.com/Power-Jacket-...c1671d003.html PowerSkin should have one (waterproof) case soon as well: http://blog.power-skin.com/news/powe...mputex-debuts/
I have a small worry though - can the usb port cover be turned around like that on pictures (safely)?