All "C Series" Mid Tower cases include the following:

Accepts all ATX and Micro-ATX Motherboards
External 5.25" x 3, 3.5" x 2 Drive Bays
Internal 3.5" x 3 Drive Bays
ATX 12V form factor Power Supply
7 PCI/AGP Expansion Slots
12cm Rear Fan
Vortex Air Duct
Side Air Duct & PCI Vent Hole
Screwless Front Panel
Screwless Side Panels
Screwless 5.25" Drive Bays
Screwless 3.5" Drive Bays
Swiveled HDD Drive Cage
4 Screwless PCI/AGP Expansion Slots
USB2 x 2 and audio Front Panel Access


All "D Series" Desk Top Cases include the following:

Accepts all Micro-ATX motherboards
External 5.25" x 2, 3.5" x 1 Drive Bays
Internal 3.5" x 1 Drive Bay
SFX 12V, 240W/300W Power Supply
4 PCI/AGP expansion slots
USB2 x 2 and audio Front Panel Access

All "BT Series" Desk Top Cases include the following:

slim desktop/ tower
Accepts all m-ATX Motherboards
External 5.25" x 1, 3.5" x 1 Drive Bays
Internal 3.5" x 1 Drive Bay
TFX 12V, 240W/300W Power Supply
4 Low-profile PCI/AGP Expansion Slots
USB2 x 2 and audio Front Panel Access