Cooler Master MasterBox NR600 Mid-Tower

Day 0–7

Dead or not as described: instant replacement or full refund.

Report the issue within the window — an unboxing video makes it instant, no questions asked.

Day 8–30

Free repair or replacement after bench re-verification.

Ship the part back; it goes on the same bench that certified it. Verified faults are made right at no cost.

After day 30

Paid bench diagnosis with a written report.

Flat fee, credited toward any repair or replacement part we sell.