About to replace mine on a 2413U. I previously had a 2413S which I think I already chucked in the bin... Wishing I had saved it now. The 2413U is a v1.B, purchased in 2013, so almost 4 years... Not too bad. Will report back shortly.
I also ordered 10 of everything... Probably should have ordered 30 of the EKZM500ETD101MHB5D, but oh well...
I'm thinking I can kit these up as well and just do US mail ($0.42) for anyone else who might need them to save on the shipping.