Ok, here are some much better pictures of our two new trays.
The DE2-24P is the 2u performance model, meaning that it holds 2.5" 10,000 RPM drives (and up to four LZ SSDs, of course). These are currently either 300GB or 900GB drives.
The DE2-24C is the 4u capacity model, which holds the larger 3.5" 7,200 RPM drives and LZ drives. These are currently 3TB drives.
One of these days, I really need to update my storage eye charts with these new trays. I just haven't had the time!!!