And yes, ALL of this works. The floppy drives are selected with the left switch and the type configured in BIOS. Dual boots windows 10 and MS DOS with the right switches selecting the OS (though one of them broke, I need to replace it)

Contains, from top to bottom:

IDE drive bay

360K 5¼ floppy drive

1.2MB 5¼ floppy drive

1.44MB/740K 3½ floppy drive

BD/DVD/CD drive

2.5/3.5 SATA bay

2.5/3.5 SATA bay

Card reader/USB/SATA/power/audio panel

PC speaker

More USB, more audio, and firewire

Internal hardware is temporary, working on some upgrades at the moment, including triple booting XP