. Model    No.: Silent Max (M903） Soundproof Solution: Top panel, sides panel and front panel with sound insulation cotton inside  Type: Full tower quiet case; PC server tower case Motherboard Support: PC Server M/B; EATX/ATX/MATX/ITX (MAX size：305*272mm) Front Panel: Coverd by anodized aluminum sheet , not plastic with sound insulation cotton inside  Sides   Panel: Standard flat side panel with sound insulation cotton inside  Top    Panel: with plastic cover with sound insulation cotton inside  Chassis: 0.8mm, Black painting interior Top Ports: USB2.0x 2  (included) USB3.0x 2   (included) Micro SD&SD Card Reader (Included) USB Door (dust-covered function) PSU          Port: Bottom / ATX Tool Free Kits: included Reserved Fan Ports:  Front:      2x12cm  Black fan  (Included) Top:         2x12cm  Black fan  (Included) Rear:        1x12cm  Black fan  (Included) Bottom:   1x12cm  Black fan  (Included) Water-Cooling System: Rear: 1x120mm water cooling  (optional) Top: None Drive Bays 5.25'' exposed 2 Drive Bay   3.5''   exposed 1 Drive Bay   3.5''   hidden 8 Drive Bay   2.5''   SSD 10 ( 8 of them exchange with 3.5" ) PCI Expansion Slots: 8 QTY in 20GP cntr(appr.): 280 pcs QTY in 40HQ cntr(appr.): 690  pcs Chassis Size: L470*W210*H465 mm Carton   Size: L577*W286*H597 mm Max.VGA Card  (Length): 420 mm Max.CPU Cooler(Height): 170 mm Support Cable Management: yes