NX10-NX11 remote control.
I gave up on Samsung providing the cable remote NX10 NX11 after a string of broken delivery dates.
I ended up with a 2 part wireless remote control listed for 'Canon 10 & Contax' made by a German company trading as 'Blitz'. It works fine up to 100mtrs.
BTW there is a guy listing Chinese made NX10 remotes on ebay. They don't work as the camera plug supplied on the end of the cable doesn't fit (escalated to ebay as a dispute as the seller won't refund).