ATX open chassis: Material: high-quality 0.8mm SPCC steel plate, the surface is baked with black sand grain paint; Number of graphics cards supported: According to the motherboard, the length and width of graphics cards are not limited; Support motherboard: support motherboards within 305 x 245mm: ATX, Micro-ATX, ITX; Support power supply: standard ATX power supply, reference size 150mm x 86mm x (140-250)mm; Support 1 SSD, 1 HDD; Dimensions after installation: 440 x 265 x 128mm Color: Black Material: metal Package Contents: 1 x Open computer chassis Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.