B450 mainboards support all the features of Ryzen's second generation processors, including the new XFR2 overclocking feature. In addition, the motherboards support up to 64 GB of RAM with a guaranteed clock rate of 2,933 megahertz. Depending on the motherboard, significantly higher clock rates are also possible using overclocking, and the B450 chipset also enables the processor to be overclocked. The MSI B450M Bazooka Plus Micro-ATX motherboard features a PCI Express 3.0 slot with full x16 connectivity for graphics cards. The motherboard provides two PCIe x1 slots for additional expansion cards. The four RAM banks support up to 64 GB DDR4 memory with a clock rate of up to 2,933 megahertz and can even clock rates of up to 3,333 MHz via OC. An M.2 slot with PCIe connectivity is provided by the AM4 mainboard. M.2 SSDs with advanced NVM Express protocol (NVMe) and four PCI Express 3.0 lane connectivity are up to eight times faster than SATA 6G hard drives and support data transfer rates of up to 32 Gbps. In addition, there are another four SATA ports internally. The MSI B450M Bazooka Plus provides four USB 3.0 ports with Type A jack and two additional USB 2.0 Type A ports on the I/O bezel. For CPUs with integrated graphics, such as the Raven Ridge series, there is an additional HDMI and DVI-D slot. The MSI B450M Bazooka Plus also features a 4-pin header for static addressable RGB elements. There are also three 4-pin connectors for PWM fans, which can also be equipped with 3-pin fans. A highlight of this motherboard is certainly the chic red LED lighting next to the RAM sockets. The effects can be controlled via MSI's Mystic Light software.