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This 10-pack PWM fan extension cable features male to female 4-pin connectors, fully compatible with 3-pin DC and 4-pin PWM cooling fans. The braided sleeved design improves chassis appearance and prevents tangling. With a 10.6-inch length, it fits most ATX case structures for clean and convenient wiring. High-quality copper core ensures stable power delivery to case fans and CPU coolers. Ideal for PC building, fan upgrades, and system maintenance.