New motherboard, I didn't even install it yet, just ordered it from Amazon and received it. It turned out that I don't need it for development, and literally the motherboard is brand new with all its accessories. - Details: Brand: ASUS CPU Socket: AM4 Compatible Devices: Personal Computer RAM Memory Technology: DDR4 Compatible Processors: AMD 3rd Generation Ryzen Chipset Type: AMD B550 AMD AM4 Socket and PCIe 4.0 Expansion Slots: Perfect combination for AMD Ryzen 3rd generation processors. Ultra-fast connectivity: 1 x PCIe 4.0 x16 slot (safe slot), Wi-Fi 6 (802.11ax), 1 Gigabit LAN, Dual M.2 slots (NVMe SSD) - one with PCIe 4.0 x4 interface, USB 3.2 Gen 2 Type-A, HDMI 2.1 (4K@60Hz), D-Sub and DVI. Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2. 5X Protection III: Comprehensive protection including LAN Guard, DRAM overcurrent protection, voltage protection, safe slot and stainless steel I/O shield. Enhanced Memory Performance: The specially designed OptiMem trace layout allows memory kits to operate at higher frequencies with less voltage, maximizing system performance. Enhanced Power Solution: 8+1 DrMOS power stages with high-quality alloy chokes and durable capacitors provide reliable power for the latest high-core-count AMD CPUs. Aura RGB Sync: Synchronized LED effects across a wide range of compatible PC components, plus RGB LED and Gen 2 addressable RGB headers for further customization. - - I have 500