Features: Audio chip Integrated Realtek ALC887 7.1 channel sound chip. Chipset Description Using AMD B550 Chipset. Display chip CPU built-in display chip (requires CPU support). Main Chipset AMD B550. Motherboard chipIntegrated chip sound card/network card. Network card chip Onboard Realtek RTL8111H Gigabit network card. brand new and high quality Specifications: Processor Specifications CPU type AMD Ryzen 3000/4000G/5000/5000G series processors (except R5 3400G/R3 3200G) CPU socket Socket AM4 Memory Specifications Memory type 4×DDR4 DIMM Maximum memory capacity 128GB Memory Description Support DDR4 4800(OC)/4600(OC)/4466(OC)/4400(OC)/4133(OC)/4000(OC)/3866(OC)/3600(OC)/3466(OC)/3200 /3000/2800/2666/2400/2133MHz memory Storage expansion PCI-E Standard PCI-E 4.0 PCI-E X16 slot 1 PCI-E X1 slot 2 Storage interface 2 x M.2 interface, 4 x SATA III interface I/O interface USB interface Back: 2×USB3.2 Gen2 ports, 4×USB3.2 Gen1 ports Front: 2×USB3.2 Gen1 ports, 4×USB2.0 ports Video interface 1 × VGA interface, 1 × DVI interface, 1 × HDMI interface Power connector One 8-pin, one 24-pin power connector Other interfaces 1×PS/2 keyboard and mouse general interface, 1×COM interface, 1×RJ45 network interface, 3×audio interface Plate type Mainboard form factor Micro ATX form factor Dimensions 24.4×24.4cm Software management BIOS performance 256 Mb Flash ROM, UEFI AMI BIOS Other parameters Multi-graphics technology Support AMD 2-Way CrossFireX technology Overclocking function support RAID function Support RAID 0, 1, 10 Operating System Windows10 64-bit Package Includes: 1 x for PRIME B550M K Motherboard note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.