Asus PRIME B250M-K is the next evolution of the Asus PRIME B250M-K, born of a pedigree that stretches back to 1989. Our team of world-class engineers are passionate about empowering everyone to enjoy the benefits of customization and tuning, and the driving force behind the development of Prime is to make advanced enthusiast controls easily accessible maximizing performance, stability and compatibility for the very best DIY PC experiences. Simply stated: it's time for Prime.

Built to Last

ASUS is the world's foremost motherboard manufacturer, renowned for our unique Design Thinking approach. Our exhaustive testing exceeds industry standards, supported by high-quality components for exceptional real-world protection. Our motherboards are proven to be compatible with more than 1,000 components and devices, and each new model undergoes a minimum of 8,000 hours of strict validation. ASUS gives you the peace of mind of knowing that your motherboard is fit for all environments and applications. By choosing ASUS, you also gain the freedom to select outstanding component options, for trouble-free DIY experiences.

SafeSlot Core
Fortified PCIe with solid soldering

SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, Safeslot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.

LANGuard
Pumped-up throughput. 2.5x higher surge tolerance.

ASUS LANGuard is hardware-level networking protection that employs signal-coupling technology and premium anti-EMI surface-mounted capacitors to ensure a more reliable connection and better throughput, plus electrostatically guarded and surge-protected components for greater tolerance to static electricity and improved protection against surges.

Overvoltage Protection
World-class circuit-protecting power design

An exclusive circuit design with built-in voltage regulators to protect your chipset, connectivity ports, and audio codecs from damage caused by unexpected high-level voltages from unstable or inferior power supplies.

ESD Guards
Electrostatic discharge protection

ASUS ESD Guards prevent damage from electrostatic discharge, up to +/- 10kV for air discharge and +/- 6kV for contact discharge, arranged in an active-protective-circuit design that prolongs the life of components.

Proven Compatibility

Tested to be compatible with 1,000+ CPUs, DDR4 memory modules, graphics cards and more. Having the freedom to pick and choose the parts that go into your machine is at the heart of PC DIY. Our extensive certification program focuses on providing the very best compatibility with the widest range of components and devices, giving you the freedom to build and upgrade without frustration. Compatible today and compatible far into the future that's the ASUS way.

Great Compatibility with ASUS Products

ASUS offers a suite of proprietary components graphics cards, sound cards, optical drives that perfectly complement the Prime 200 series, so you can complete your custom motherboard build with confidence.

Fan Xpert Dedicated CPU and case fan controls

Exclusive Fan Xpert ensures every fan achieves the best balance of cooling performance and low noise - and with Prime 200 series boards and their hardware-level 4-pin/3-pin PWM/DC mode for case fans, a simple BIOS adjustment lets you run your case fan in PWM/DC. Fan Xpert even includes Auto-Tuning mode to scan and detect all fan characteristics for single-click customization.

Model - Asus PRIME B250M-K, CPU Sockets - LGA1151, Chipset - Intel B250, Supported CPU - 7th/6th Generation Core i7 / i5 / i3 / Pentium / Celeron Processors, Memory Type - DDR4, Memory MHz - 2400/2133MHz Non-ECC, Memory Channel - Dual, Memory Slot - 2, Memory Max. - 32GB, Optane Memory Support - no, Graphic - Intel HD, PCI Express Slot - 1 x PCI Express 3.0/2.0 x16, Storage Interface - 6Gb/s, M.2 Slot - 1 x M.2 Socket 3 (type 2242/2260/2280 storage devices support (SATA mode & X4 PCIE mode)), LAN Chipset - Realtek RTL8111H, Audio Chipset - Realtek ALC887, Audio Channel - 8-Channel, USB Port - 6 x USB3.0/2.0 (Type-A), 6 x USB2.0/1.1, VGA Port - 1, DVI Port - 1, SATA Port - 6 x SATA, BIOS Model - UEFI AMI BIOS, BIOS Version - PnP, DMI3.0, WfM2.0, SM BIOS 3.0, ACPI 6.1, Supported Operating System - Windows 7 / 8.1 / 10, Form Factor - mATX, Warranty - 3 Year, Special Features - SafeSlot Core: Fortified PCIe Slot prevents damage, LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges, Overvoltage Protection: World-class circuit-protecting power design, Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability, DIGI+ VRM: 5 Phase digital power design, EPU, AI Suite 3, Ai Charger, Stylish Fanless Design Heat-sink solution, Fan Xpert, CrashFree BIOS 3, EZ Flash 3, MyLogo 2, Q-DIMM, Others - 1 x M.2 Socket 3(Asus PRIME B250M-K)