We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green Micro ATX motherboard with silver heatsinks, black slots and rear I/O shield

ASRock

ASRock B250M Pro4 LGA 1151 Micro ATX Intel motherboard

SKU CH-MYYQ-WF1B4

Micro-ATX board for 6th- and 7th-gen Intel CPUs with four DDR4 slots, dual x16 PCIe, six SATA3 ports and an Ultra M.2 socket

  • CPU Socket TypeLGA 1151
  • CPU TypeSupports 7th and 6th Generation Intel Core i7/i5/i3/ Pentium
  • Supported CPU TechnologiesTurbo Boost Technology 2.0 * Not Compatible with Intel 8th G
  • ChipsetIntel B250
  • Onboard Video ChipsetSupports Intel HD Graphics Built-in Visuals: Intel Quick Syn
  • Number of Memory Slots4x288pin (DDR4)
  • Supports 7th and 6th Gen Intel Core processors on LGA 1151 socket
  • Dual-channel DDR4 memory up to 2400 MHz with 64 GB maximum capacity
  • Two PCI Express 3.0 x16 slots plus one x1 slot for graphics and expansion cards
  • Ultra M.2 socket delivers PCI Express 3.0 x4 speeds up to 32 Gb/s for NVMe SSDs
  • Intel I219-V Gigabit LAN and Realtek ALC892 7.1-channel audio for wired networking and surround sound

Socket LGA 1151 Micro ATX board

The ASRock B250M Pro4 is a Micro ATX motherboard built around the Intel B250 chipset for Socket LGA 1151 processors. It accepts 6th and 7th Generation Intel Core i7, i5, i3, Pentium and Celeron CPUs. The board is not compatible with 8th Generation Intel CPUs. It fits standard Micro ATX chassis and provides a compact platform for office or home builds.

Dual Ultra M.2 and six SATA3 ports

Two Ultra M.2 sockets accept type 2230, 2242, 2260 and 2280 modules; one supports both SATA3 and PCI Express Gen3 x4 modes, the other supports PCI Express only. Six SATA3 6.0Gb/s connectors handle hard drives and SATA SSDs with NCQ, AHCI and hot plug. If a SATA-type M.2 device occupies the first socket, one SATA3 port is disabled. Realtek ALC892 delivers 7.1 channel audio and Intel I219-V provides 1Gbps LAN.

Four DDR4 slots up to 64GB

Four 288-pin DDR4 slots run in dual-channel mode with a maximum capacity of 64GB. 7th Generation CPUs support DDR4 2400, while 6th Generation CPUs support DDR4 2133. Two PCI Express 3.0 x16 slots operate at x16 and x4 electrical, plus one PCI Express 3.0 x1 slot and one legacy PCI slot. Integrated graphics output via D-Sub, DVI-D and HDMI supports triple monitors with HDMI up to 4096x2160 at 24Hz.

Highlights

  • Supports 7th and 6th Gen Intel Core processors on LGA 1151 socket
  • Dual-channel DDR4 memory up to 2400 MHz with 64 GB maximum capacity
  • Two PCI Express 3.0 x16 slots plus one x1 slot for graphics and expansion cards
  • Ultra M.2 socket delivers PCI Express 3.0 x4 speeds up to 32 Gb/s for NVMe SSDs
  • Intel I219-V Gigabit LAN and Realtek ALC892 7.1-channel audio for wired networking and surround sound

Specifications

BrandASRock
ModelB250M Pro4
CPU Socket TypeLGA 1151
CPU TypeSupports 7th and 6th Generation Intel Core i7/i5/i3/ Pentium/Celeron Processors (Socket 1151)
Supported CPU TechnologiesTurbo Boost Technology 2.0
* Not Compatible with Intel 8th Gen CPUs
ChipsetIntel B250
Onboard Video ChipsetSupports Intel HD Graphics Built-in Visuals: Intel Quick Sync Video with AVC, MVC (S3D) and MPEG-2 Full HW Encode1, Intel InTru 3D, Intel Clear Video HD Technology, Intel Insider, Intel HD Graphics
- Gen9 LP, DX11.3, DX12
- HWA Encode/Decode: VP8, HEVC 8b, VP9, HEVC 10b (For 7th Gen Intel CPU)
- HWA Encode/Decode: VP8, HEVC 8b; GPU/SW Encode/Decode: VP9, HEVC 10b (For 6th Gen Intel CPU)
- Max. shared memory 1024MB**
- Three graphics output options: D-Sub, DVI-D and HDMI
- Supports Triple Monitor
- Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30H
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 2400*/ 2133
* 7th Gen Intel CPU supports DDR4 up to 2400; 6th Gen Intel CPU supports DDR4 up to 2133.
Maximum Memory Supported64GB
Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
Channel SupportedDual Channel
PCI Express 3.0 x162 x PCI Express 3.0 x16 Slots (PCIE1: x16 mode; PCIE3: x4 mode)*
* Supports NVMe SSD as boot disks
PCI Express x11 x PCI Express 3.0 x1 Slot (Flexible PCIe)
PCI Slots1 x PCI Slot
Serial ATA (SATA)6 x SATA3 6.0Gb/s Connectors, support NCQ, AHCI and Hot Plug*
* If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.
M.21 x Ultra M.2 Socket (M2_1), supports type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
1 x Ultra M.2 Socket (M2_2), supports type 2230/2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32Gb/s)**
** If PCIE2 slot or PCI slot is occupied, the PCIe-type M.2 device on M2_1 socket will run at Gen3 x2 (16Gb/s).
** Supports Intel Optane Technology (M2_2 only)
** Supports NVMe SSD as boot disks**
** Supports ASRock U.2 Kit
Audio ChipsetRealtek ALC892
Audio Channels7.1 Channels
*To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver.
LAN ChipsetIntel I219-V
Max LAN Speed1Gbps
PS/21 x PS/2 Mouse Port
1 x PS/2 Keyboard Port
Video Ports1 x D-Sub Port
1 x DVI-D Port
HDMI1 x HDMI
RJ451 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
USB 3.13 x USB 3.1 Gen1 Type-A Ports (Supports ESD Protection (ASRock Full Spike Protection))
1 x USB 3.1 Gen1 Type-C Port (Supports ESD Protection (ASRock Full Spike Protection))
USB 1.1/2.02 x USB 2.0 Ports (Supports ESD Protection (ASRock Full Spike Protection))
Audio PortsHD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection (ASRock Full Spike Protection))
1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection (ASRock Full Spike Protection))
Other Connectors1 x Print Port Header
1 x COM Port Header
1 x TPM Header
1 x Chassis Intrusion and Speaker Header
2 x CPU Fan Connectors (1 x 4-pin, 1 x 3-pin)*
2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)**
1 x Front Panel Audio Connector
* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
** CHA_FAN1 and CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.
Form FactorMicro ATX
Dimensions (W x L)9.6" x 9.6"
Power Pin1 x 24-pin ATX Power Connector
1 x 8-pin 12V Power Connector
FeaturesUnique Feature:
ASRock Super Alloy
- Premium 50A Power Choke
- Sapphire Black PCB
- I/O Armor
- High Density Glass Fabric PCB
ASRock Intel 4-Layer Memory POOL (Planes on Outer Layers) Technology
ASRock Ultra M.2 (PCIe Gen3 x4 & SATA3)
ASRock Full Spike Protection
ASRock Live Update & APP Shop
BIOS:
- 128MB AMI UEFI Legal BIOS with multilingual GUI support
- ACPI 6.0 Compliant wake up events
- SMBIOS 2.7 Support
- CPU, GT_CPU, DRAM, PCH 1.0V, VCCIO, VCCSA, VCCST Voltage Multi-adjustment
Software and UEFI:
Software
- ASRock APP Charger
- ASRock XFast LAN
UEFI
- ASRock EZ Mode
- ASRock

Questions about this item

Will the CMOS battery need replacing and how is it accessed?

A standard coin cell is fitted in a holder on the board; it can be swapped by lifting the retaining clip once the system clock begins to lose time

Which expansion slot saturates first when a high-throughput NVMe drive and a discrete GPU are both active?

The Ultra M.2 socket (M2_1) runs at PCIe 3.0 x4 (32Gb/s) while the primary PCIe x16 slot operates at x16, so the M.2 link reaches its ceiling first

How loud are the chipset and VRM areas after hours of full-load operation?

The B250 chipset and VRM sections are passively cooled; they stay silent, though case airflow must handle the heat they dissipate

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.