Corsair announced a promotional discount offering a $75 reduction on purchases of $350 or more using coupon code NA-DIY75, valid for hardware and gaming chairs, and set to expire on August 23, 2026. The promotion is part of the company's back-to-school initiatives aimed at customers in the United States. The discount applies to a range of products including the Frame 4000D mid-tower case, which supports E-ATX motherboards and up to two 360 mm radiators and features reverse-mounting brackets for Asus BTF, MSI Project Zero and Gigabyte Project Stealth series. The RM850e power supply provides 850 W with modular cabling, Cybenetics Gold certification, Intel ATX 3.1 and PCIe 5.1 compatibility, and includes a native 600 W 12 V-2x6 cable for next-generation graphics cards. The Nautilus 360 RS all-in-one liquid cooler uses three fans and is compatible with Intel LGA1851 and LGA1700 sockets as well as AMD AM5 and AM4 sockets. The RS120-R ARGB fans are 120 mm units with PWM control, Zero RPM mode, 65.82 CFM airflow and 2.81 mm-H2O static pressure, suitable for case ventilation and radiator cooling. The TC100 Relaxed gaming chair offers ergonomic support with adjustable neck and lumbar cushions, a maximum load capacity of 264 lb (120 kg), and accommodates users up to 6 ft 2 in (188 cm) tall. The promotion is limited to U.S. consumers and ends at 11:59 p.m. PST on August 23, 2026. Additional related offers can be found on Tom's Hardware pages covering PC hardware, SSD and storage, hard drives, graphics cards, monitors, gaming chairs, Wi-Fi routers, motherboards and CPUs. The discount period concludes on August 23, 2026, after which the listed products will revert to their regular pricing.