It offers 4 hot swap trays with lock and SATA backplane which is best case for NAS system. Not only supporting all ITX motherboard, but also can accept one PCI slot.
• Mesh design provide excellent ventilation
• Four Hot-Swap Enabled Front-loading trays fo reasy SATA HDD installation
and removal
• 12cm fan at rear provides better cooling of HDD
• High quality rubber pads
Material Chassis: SECC
Front Panel: ABS
Drive

3.5” x 4 (Hot Plug)
2.5” x 1 (Hidden)
Cooling Fan 12cm fan
Front I/O USB2.0 x 2
LED Indicator HDD & Power
Power Supply 200W
Dimensions 200(W) x 250(H) x 303(D) mm
Packing 4PCS/Carton
NW: 18.8KG GW: 22.1KG
CUFT: 4.3
Safety CE, FCC, UL, CB, ROHS
Warranty 1 Year