Open Frame ATX Computer Case, 3D Printed Open Air Test Bench Chassis 【Key Features】 Unmatched Versatility: Supports ATX, Micro-ATX, and Mini-ITX motherboards. Compatible with ATX, SFX, and SFX-L power supplies. Dual Installation Modes: Choose between standard layout or vertical GPU mounting (a 15cm 90-degree PCIe riser cable is required for vertical mode and is not included). Note: Vertical GPU mounting is not supported when an ATX motherboard is installed. Enhanced Storage & Cooling: Can install two 2.5" or 3.5" hard drives simultaneously. With an optional cooling bracket (sold separately), it supports 360mm, 240mm, or 120mm radiators. Durable & Customizable: Made from high-quality PETG material for strength and stability. Offers extensive personalization with standard colors, custom color options, and even multi-color designs. Complete Kit: Includes all necessary screws, a power button, and front panel connectors for a hassle-free build. 【Product Specifications & Compatibility】 Motherboard Support: ATX, Micro-ATX, Mini-ITX Power Supply Support: ATX, SFX, SFX-L Drive Bays: 2 x 2.5" / 3.5" (combined) Expansion Slots: Supports standard and vertical GPU mounting (see note above) Cooling Support: Up to 360mm radiator with optional bracket Primary Material: 3D Printed PETG Included Accessories: All mounting screws, power button with cabling, front panel jumper wires. 【Color, Shipping & Customization】 Standard Colors: Black, White Premium Colors: Gray, Brown 【Warranty & Important Notes】 Understanding 3D Printing: This case is handcrafted via 3D printing. Minor layer lines or tiny imperfections are normal and part of the manufacturing process. These do not affect functionality. Perfectionists, Please Note: If you expect flawless, injection-molded perfection, this product may not meet your expectations. We celebrate the unique, crafted nature of 3D printing! Stock Status: The listing is active only when we are accepting orders. If you can place an order, we have the capacity to fulfill it.