1.SPCC quality cold rolled steel, 1.2mm thickness, with locker for anti-thef
2.Doors type optional, two handles on top
3.15U and 24U is standard height, usually 2~3 tiers, 16pcs in each tiers, Independent USB charge port
4.Specially designed for school/factory/hospital/educational business use
5.Charge for tablets/notebooks/drawing pads at same time.
6.High voltage fuse and power leakage protection design.
7.Cooling fan system, two pcs for one tier
8.Recycling charge control for energy save design
9.Led light charge indicators.
10.Rolling wheels with braked.