Dell Optiplex 390 / 3010 Desktop hard drive trays

These are replacements for the hard drive trays for the Optiplex 390 / 3010 and similar Desktop form factor computers. There are 3 versions:

1) 3.5 inch drive
2) Dual 2.5 inch drives
3) One 3.5 and one 2.5 inch drives (This is similar to the original Dell but requires significantly more support to print.)

I haven't printed the 3rd version yet, if you find any issues with it please let me know and I will update it.