Sensei PRO 39-58mm Aluminum Step-Up Ring ID Cards Adds a standard USB port

Adds a standard USB port to your micro USB OTG capable tablet computer or smartphone Connects a USB keyboard or mouse to your tablet Connects a thumb drive to your tablet

and protects all connected equipment with a lifetime $50

The angled shield fits over eyecups with outside diameters of 1

1) USB Host XHCI (USB 3

With the Admin PIN

Sensei PRO 39-58mm Aluminum Step-Up Ring ID Cards Adds a standard USB portUse 58mm Filters on 39mm Lens Knurled Sides for Firmer Grip Matte Black Finish Minimizes Reflections Corrosion Resistant Hard Anodized Finish The Sensei PRO 39 58mm Aluminum Step Up Ring permits the use of 58mm threaded filters on lenses with 39mm filter threads. It has large side knurls to provide a more textured grip when mounting or removing it from a lens. This step up ring features a lightweight, aluminum alloy construction that has a corrosion