Cooler Master MasterFrame 600 — Open-Frame ATX Mid Tower Case, Silver
Free US shipping through Dec 31, 2026
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Free US shipping through Dec 31, 2026 · 90-day worry-free returns — free return label, no restocking fee · Refund released at your return’s first carrier scan · Arrives damaged or defective? We make it right — Returns, Made Simple
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Some cases hold a build. The Cooler Master MasterFrame 600 (MF600-SGNN-S00) in silver is built to become one — an open-frame mid tower on Cooler Master's FreeForm 2.0 platform, where the exposed exo-structure, swappable panels, and published modular design files invite you to reconfigure, customize, and keep evolving the chassis long after the first build is done.
The hardware envelope is flagship-grade. Motherboard support runs from Mini-ITX through ATX, with conditional support for E-ATX and SSI-CEB, and there is clearance for graphics cards up to 485 mm long and CPU coolers up to 190 mm tall. The silver model arrives with three SickleFlow ARGB 140 mm fans up front and a SickleFlow ARGB 120 mm fan at the rear, plus an ARGB PWM hub and GPU support bracket in the box, so it looks the part and holds heavy cards straight from day one.
Cooling headroom is where the MasterFrame 600 really separates itself. It supports up to eleven fans across the front, top, side, and rear, and radiators up to 420 mm at the front, top, and side. Panels remove without tools for fast changes, 43 mm of cable routing space keeps a big build tidy, and the front panel carries two USB 3.2 Gen 1 Type-A ports, a USB 3.2 Gen 2x2 Type-C port, and a headset jack. For builders who mod, tinker, and upgrade on a cycle, this is a frame — not a dead end.
Materials and storage keep the same no-compromise brief: an SGCC steel and aluminum exterior with a tempered glass side panel, two combo 2.5/3.5-inch bays plus three 2.5-inch bays, eight expansion slots, and support for ATX power supplies up to 235 mm. Cooler Master covers the MasterFrame 600 with a 2-year warranty.
Specs: Mini-ITX to ATX (E-ATX conditional) · 531 x 261 x 544 mm · GPU up to 485 mm · CPU cooler up to 190 mm · Part # MF600-SGNN-S00
Free US shipping, a 90-day return window, and your refund released at the first scan.
• Free standard US shipping on every order through December 31, 2026 — no code needed
• Orders processed in 1–3 business days; standard delivery in 5–7 business days (expedited 2–4 and express 1–2 when available)
• 90-day worry-free returns — free prepaid return label, no restocking fee, ever
• When your return’s prepaid label gets its first carrier scan, we release your refund to your original payment method — you don’t wait for the package to reach us
• Arrives damaged, defective, or wrong? We cover the return shipping and make it right — replacement, exchange, or refund
• Tracking information is provided with every shipment, and products are securely packaged for safe delivery
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90-day worry-free returns · Free return shipping · Refund at the first carrier scan
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