Duke, I did a lot of research and this one came out tops. It was not cheap but it has a fan at the back which is best and the trays slide out of the front like drawers.
I had an old Excaliber many years ago , in fact so long ago I have forgotten a lot about it but it did work fine.
I have another one, round, with trays that sit on top of each other and no fan but I think it is useless , everything I tried in it came out wrong so it is stuck in storage now, it was a secondhand cheapie.
This one is rated pretty high of you do some investigating.
I am going to try it with bananas this week.
Ilove homemade jerky so am hoping to get good results with that.
XX Jeannine
This is mine, well m ine is black but thus is the UK site
http://www.detoxyourworld.com/acatalog/excalibur_9.html