MSI PRO Motherboard MB6990 B550M-A Micro-ATX

------------------------------------------------------------------------------------------------------------------ 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ------------------------------------------------------------------------------------------------------------------

This Micro-ATX motherboard supports DDR4 memory and offers essential features while keeping costs down. It's also suitable for space-saving PCs. A 2oz thick copper layer is applied to the circuit board to improve circuit transmission stability and heat dissipation. This ensures reliability even during prolonged operation and under heavy load. Equipped with an EZ Debug LED, troubleshooting is easy. Assembly and maintenance can be performed with confidence by both beginners and advanced users. The PCIe slot features a metal-reinforced Steel Armor specification, providing stable support even when installing large graphics cards. Equipped with four M.2 Gen4 x4 slots, it maximizes the performance of high-speed NVMe SSDs, contributing to improved overall system responsiveness.