You are welcome Marle2. Be carefull at buying. There are two versions of this DeLock adapter, called Type1 and Type2. Type2 is thicker, it does not fit in the slots of the ACA 500+.
Jens : i think 16 GB is enough for anything Amiga related. But we had a good offer at our local Media Markt. I got this 400 GB card for 59 Euro, about 4 months ago and decided to try it out. They dont advertise these cards, you need to ask in the photo section of the store. These cards are hidden and locked away. At least in our store.