Has anyone bought an R4 card recently?

[Polgara2]

The site that I bought my last one from doesn't seem to be working any more. There are lots of r4 this or that . com type of hits from google but would prefer to buy from somewhere I know is going to be geniune.

Many thanks

Please excuse my ignorance but what's an "R4" card used in/ on/ for ?

I got some from here and they seems to be ok.

Thanks for link.

ok thanks gloomysue. Was it fairly recently and how long did it take to arrive? Thanks