SanDisk today unveiled a Rock Band branded 2GB memory card for the Wii.

The SD cards will sell for $13 a pop and are set to hit the U.S. this spring. With songs taking as much as 50 megs each and the Wii only sporting 512MB of onboard stoarge, extra external memory seems like a must for any hardcore fans of Rock Band.

Memory cards, good. Hard drive? Better.

SanDisk Rock Band Wii Cards