Dual drive 3.5" & 5.25" ..
internal power suppy with power switch at the front ..
Also brought the LEDs to the front so I can monitor activity ..
It was an old single 5.25" inch scsi cd drive (external) ..so had to remove the original power supply to make space for the 3.5" fdd ..
The hardest part was cutting away steel to make a suitable opening at the front for the smaller FDD ..
I'm really pleased with the result.