The Lenovo IdeaPad 5 B21H92779 Motherboard NM-E771 is a genuine original Lenovo product designed specifically for the AMD RYZEN 7 processor and 16G RAM.
Model MANA134. Case Material SEEC Steel. Motherboard Compatibility Micro ATX / ATX. Type ATX Mid Tower. Side Panel without Side Window. Cable routing space. Color Black. Supports USB 3.0 x 2.