1) SHORT STRUCTURE: Structure 4-1s & 4-2s & 4-3s
(Can fix with LGA Mother board such as 915 or 935 model, for LGA mother board, just can use 2*5.25 inch device)
Expansion Slot: 7 Slots
Structure Size (LxWxH): 375*175*410mm
Panel Length: Around 35-40mm
Carton Size (LxWxH): 448*214*465mm
Material: 0.5mm SPCC + Printing Powder
Q'ty/20": 630PCS; Q'ty/40": 1250PCS; Q'ty/40 HQ": 1450PCS

2) STANDARD STRUCTURE: Structure 4-1 & 4-2 & 4-3 & 3
(Can fix with LGA Mother board such as 915 or 935 model, for LGA mother board, just can use 2*5.25 inch device)
Expansion Slot: 7 Slots
Structure Size (LxWxH): 390*175*410mm
Panel Length: Around 35-40mm
Carton Size (LxWxH): 448*214*465mm
Material: 0.5mm SPCC + Printing Powder
Q'ty/20": 600PCS; Q'ty/40": 1200PCS; Q'ty/40 HQ": 1400PCS

3) Lengthen Structure 4-A & 4-B & 4-C & 3L
(Can fix with LGA Mother board such as 915 or 935 model, for LGA mother board, can use all 4*5.25 inch device)
Expansion Slot: 7 Slots
Structure Size (LxWxH): 430*175*410mm
Panel Length: Around 35-40mm
Material: 0.5mm SPCC + Printing Powder
Q'ty/20": 550PCS; Q'ty/40": 1120PCS; Q'ty/40 HQ": 1300PCS