Features:1. This product is a graphics card holder made of high quality metal.2. Easy to install and strong structure. Support dual power supply.3. Designed according to standard holes of A-motherboards, graphics cards, hard drives, and power supplies.4. The product is an empty shelf without fans, switches and lights.5. Graphics Card Specifications: The minimum length of the graphics card for TYPE A is 14CM, and the longest is unlimited. For TYPE B, is about 160-380mm. Notice:Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement.Description:Type AProduct Size: 543*246*227MMMotherboard Size: maximum 305*245MMGraphics Card Specifications: the minimum length of the graphics card is 14CM, and the longest is unlimitedPower Supply: support ATX power supply, support extended power supplyStorage Device: SSD*1+HDD*1Fan Specifications: 12CM fan*4Product Material: 1.5/0.8 surface sprayed with sand texture blackStandard Screws: 9PCS hexagonal column, 11PCS motherboard screw, 26PCS hexagonal screw(Fixed rack 12PCS, fixed graphics card 8CPS, fixed power supply 4PCS)Packaging: 560*260*40MMGross Weight: 1.8KGStandard boot lineType BProduct Size: about 500*268*240mmGraphics Card Space: Support 6 cards, with a spacing of 81mm,Power Supply: ATX motherboard, ATX power supply,Graphics Card Specifications: 160-380mmPower Specifications: 140-240mmStorage Device: SSD*1+HDD*1Include:1 X Mining Case Rack(Need to assemble by yourself.)