What is this on DS at #5 in Amazon UK software chart?

[llewdebkram]

Nintendo DS/DS Lite R Adapter with a 2GB Memory card

http://www.amazon.co.uk/Nintendo-Lite-Adapter-Memory-card/dp/B001G22ZTA/ref=pd_ts_zbw_vg_h__300703_5?pf_rd_p=219750291&pf_rd_s=right-7&pf_rd_t=101&pf_rd_i=300703&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=1APXY85YQXFTGNXD0FVF

Is this an item that allows downloaded (pirated) games on the DS or something else?