Feature: 1. Sturdy Structure: Thickening of the bottom board and rear board, increase the optimization of folding edges, increase the structural strength by 200 percent, sturdy and durable. 2. Firm Fixing: Computer open case rack with triangular reinforced fixing plate, more stable and firm assembly. Stable and reliable, can be used for a long time. 3. Wide Compatibility: This computer open chassis rack supports all ATX, M ATX, ITX motherboards, 1 SSD, 1 HDD, standard or extended ATX power supply. 4. Support For Graphics Cards: The number of graphics cards supported depends on the motherboard's PCIE card slot and the thickness of the card, generally 3 to 7 sheets. 5. Cable Routing Hole Design: This computer motherboard case shelf with cable routing holes, support for back panel cable routing, making the whole machine more tidy. Specification: Item Type: Computer Open Case Rack Material: Steel Plate Product Installation Size: Approx. 440 x 265 x 128mm / 17.3 x 10.4 x 5in Number of Supported Graphics Cards: According to the motherboard, the length and width of the graphics card is not limited Supported Motherboards: Support All ATX, M ATX, ITX Motherboards Support Power Supply: Support Standard Or Extended ATX Power Supply Hard Disk Space: Support 1 SSD, 1 HDD. Package List: 1 x Power Switch Cable 1 x Bottom Panel 1 x Rear Panel 2 x Triangular Fixing Piece 1 x Screw Package 1 x User Manual Note: Manual measurement, please allow some errors.