Cons:Multiple sliders for the pins requires a series of internal lock-out sleeves to prevent pin conflicts. All these fiddly internal bits are packed in like a Swiss watch, but aren't as well made, so they can get messed up. The result isn't easy to fix unless you have 6 hands. Also the USB adaptor has pins that lock onto the main section. These sometimes refuse to release. Mine broke the tips off and now my USB adaptor slips out - needs a rubber band to hold it in.
