Untested. Bought a storage unit with this and 3 other motherboards in it. Looks in good condition, but I know nothing about it. MSI MPG B550 Gaming Plus V1 Motherboard is designed for gaming enthusiasts with its ATX form factor and compatibility with AMD Ryzen 5000 processors through the Socket AM4 socket type. It features 4 memory slots supporting up to a maximum of 128GB of DDR4 SDRAM, ideal for handling high-demand gaming performance. With various expansion slots including M.2 and PCI Express 3.0 x16 slots, this motherboard offers ample space for installing additional components. It also provides a range of input/output ports such as DisplayPort, HDMI, USB 3.0, USB 2.0, USB-C, and USB 3.2, ensuring connectivity for gaming peripherals and accessories. Built for gaming, the MSI MPG B550 Gaming Plus V1 Motherboard also includes on-board audio and video chipset features for enhanced functionality.