ASUS is introducing the new Prime family of motherboards positioned between its Pro Gaming series and its mainline series. These are motherboards that share their feature-set from the company's mainline series, but feature black PCBs, and black+red product styling reminiscent of some of its premium ROG motherboards. Here are some of the first pictures of the Prime B250 Pro, an ATX form-factor motherboard priced around the $100 mark. The board could share its PCB design with the Prime Z270 Pro. Based on the Intel B250 Express chipset, the board lacks NVIDIA SLI support, or the kind of CPU overclocking features the Z270 chipset does.

The Prime Z270 Pro draws power from a combination of 24-pin ATX and 8-pin EPS power connectors, and conditions it for the CPU with a 7-phase VRM. Expansion slots include one PCI-Express 3.0 x16 wired to the CPU, a second x16 (electrical x4) slot wired to the PCH, and two each of PCI-Express 3.0 x1 and legacy PCI slots. Storage connectivity includes two M.2 slots, from which one is 32 Gb/s (bottom), and the other 16 Gb/s (top); and six SATA 6 Gb/s ports. The board offers two USB 3.1 (10 Gb/s) ports, one USB 3.0 type-C port, two USB 3.0 type-A ports on the rear panel, and four USB 3.0 ports by headers. Display connectivity includes HDMI, DVI, and D-Sub. ASUS also has a stripped-down variant of this board, called the Prime B250 Plus. It lacks USB 3.1 ports, and the heatsink over the CPU VRM.