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PRIME B250M-A LGA1151 Micro-ATX Motherboard
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ASUS PRIME B250M-A LGA1151 Micro-ATX Motherboard

- Replaces the Gigabyte GA-H170M-DS3H Micro-ATX motherboard- Replaced by the ASUS PRIME B360M-A Micro-ATX LGA1151 Motherboard

ASUS' Prime 200 motherboards are engineered with industry-leading 5X Protection III, employing the finest components, excellent circuit design and exacting standards to guarantee the quality and long-term durability of the motherboard.

ASUS Prime is the next evolution of the ASUS motherboard, born of a pedigree that stretches back to 1989. ASUS' team of world-class engineers are passionate about empowering everyone to enjoy the benefits of customisation and tuning, and the driving force behind the development of Prime is to make advanced enthusiast controls easily accessible — maximising performance, stability and compatibility for the very best DIY PC experiences.


  1. Socket 1151 Micro-ATX motherboard with Intel B250 chipset
  2. Supports Intel 6th and 7th Generation CPUs
  3. 4 x DDR4 DIMM sockets (max. 64 GB)
  4. VGA, DVI and HDMI outputs
  5. 2x PCIe x16 and 2x PCIe x1
  6. 6x SATA 6Gb/s, 2x M.2, Intel Optane Memory
  7. USB 3.1 (type-C), 2x USB 3.0 ports, 2x USB 2.0, Realtek audio, LAN and PS/2 port

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.

Prime 200 motherboards are engineered with industry-leading 5X Protection III, employing the finest components, excellent circuit design, and exacting standards to guarantee the quality and long-term durability of your motherboard. That means exceptional protection and stability for your build — thanks to decades of engineering experience from the world's leading motherboard brand.

Fortified PCIe slot prevents damage

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.


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.

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.

Proven Compatibility

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.

Speed Up with Onboard M.2 Up to 32Gb/s

With x4 PCI Express 3.0/2.0 bandwidth, M.2 supports up to 32Gb/s data-transfer speeds. It is the perfect choice for an operating system or application drive, making your whole PC or professional apps work as fast as possible.

Advanced fan controls

ASUS Prime 200 series motherboards feature best-ever cooling capability, controllable from Fan Xpert 4 Core and from the UEFI. Two modes are available firstly, Auto-Tuning Mode which scans fan parameters and all fans with a single click, and Extreme Quite Mode that reduces the CPU fan speed to below the default minimum, for extra-quiet operation and power savings during light loads.

SpecificationsPRIME B250M-A
CPUIntel Socket 1151 for 7th/6th Generation Core i7/i5/i3/Pentium/Celeron Processors
ChipsetIntel B250
Memory4 x DIMM, Max. 64GB, DDR4, 2400/2133 MHz Non-ECC, Un-buffered Memory
GraphicsIntel HD Graphics support
Multi-VGA output supportVGA, DVI and HDMI
HDMI Resolution 4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz
VGA/DVI Resolution1920 x 1200 @ 60 Hz
Shared memory1024 MB
Multi-GPU SupportSupports AMD CrossFireX Technology
Expansion Slots1x PCIe 3.0/2.0 x16 (gray), 2x PCIe 3.0/2.0 x1
First M.2 SocketM.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA mode & X4 PCIE mode)
Second M.2 SocketM.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (x4 PCIE mode)
SATA 6Gb/s ports6
Intel Optane Memory ReadyYes *
LANRealtek® RTL8111H, 1 x Gigabit LAN Controller with Anti-surge LANGuard
Audio CODECRealtek ALC887 8-Channel High Definition Audio
USB 5Gb/s Ports1x rear panel, Type-C, Reversible, Support 3A power output
USB 3.0/2.0 Ports4x USB 3.0/2.0 ports (2 at rear panel, blue, Type-A, 2 onboard)
USB 2.0 Ports6x USB 2.0/1.1 ports (2 at rear panel, black, Type-A, 4 onboard)
Back I/O Ports2x PS/2 ports, HDMI, DVI-D, VGA, LAN, USB 5Gb/s port Type-C, 2x USB 3.0 (blue), 2x USB 2.0 (black), 3x Audio jacks
AccessoriesUser manual, I/O Shield, 2x SATA 6Gb/s cables, 2x M.2 screws, Supporting DVD
Operating SystemWindows 10 / 8.1 / 7 †
Form FactorMicro-ATX, 244 x 206 mm
Warranty24 months
EAN barcode4712900572056
  • *7th Gen (Kaby Lake) CPU only
  • Please note Windows 8.1 and 7 are only compatible when using a 6th Gen (Skylake) CPU

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