ROM Hack Backup nds games with usb device

[pyromaniac123]

http://www.r4ids.com.../ds-backup-gold
Just found this whilst browsing lightake. Anyone willing to buy one to try it out?

edit: Silly me, forgot to include link to item on lightake
http://lightake.com/detail.do/sku.R4_Gold_Plus_DS_Backup_for_3DS_DSi_NDS_Cards_Black-52158