Welcome to our store! Excellent Heat Dissipation: The open chassis design contributes to the heat dissipation of various hardware components and frees up internal chassis space. Divided Hardware Structure: The divided hardware structure provides you with ample internal installation space. Strong Compatibility: Supports MATX motherboards (244 x 244MM), power supply supports ATX standard large power supply, supports expansion of one hard drive storage (3.5 or 2.5 inches can be installed), supports 4 PCI expansion slots. Easy Disassembly and Assembly: It is a pure building block frame, easy to disassemble, easy to assemble, and allows you to fully experience the fun of DIY. Premium Material: Made of aluminum, which is strong, durable, stable in use, and has a long service life. Item Type: MATX Computer Open Chassis Bracket Material: Aluminum Model: PC JMK6 MATX Applicable Motherboard: MATX Motherboard (Approx. 244 x 244mm / 9.6 x 9.6in) Power Supply Design: ATX Standard Large Power Supply Heat Dissipation Performance: Full Naked Heat Dissipation Supports Expansion Hard Drive Slot: 1 (3.5 or 2.5 Inches Can Be Installed) Supports PCI Expansion Slot: 4 Switch Interface: Start, Restart Switch and Indicator Light Bottom Frame Size After Assembly: L360 x W248mm 6 x Bracket 1 x Positioning Paper 4 x Foot Pad 1 x Power Cord 7 x Right Angle Connection Plate 4 x Support Rod 4 x Screw 4 x Washer 7 x Acrylic Connection Board 4 x Black Bumper Protector 1 x Accessories Box 2 x Gloves 1 x 01 Accessories Package 1 x 02 03 Accessories Package 1 x 04 Accessories Package 1 x 05 Accessories Package 1 x 06 Accessories Package 1 x 07 Accessories Package 1 x 08 Accessories Package 1 x 09 Accessories Package 1 x User Manual Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best customer service.