• Motherboard  ASRock B250M Pro4 LGA 1151


B250M Pro4

Supported CPU

CPU Socket Type
LGA 1151
CPU Type
Supports 7th and 6th Generation Intel Core i7/i5/i3/ Pentium/Celeron Processors (Socket 1151)
Supported CPU Technologies
Turbo Boost Technology 2.0 
* Not Compatible with Intel 8th Gen CPUs


Intel B250

Onboard Video

Onboard Video Chipset
Supports 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) @ 30Hz
- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)
- Supports HDCP with DVI-D and HDMI Ports
- Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI Ports

*Intel HD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.
**The size of maximum shared memory may vary from different operating systems.
***Due to chipset limitation, the Blu-ray playback of Intel HD Graphics is only supported under Windows 8 / 8 64-bit / 7 / 7 64-bit.


Number of Memory Slots
Memory Standard
DDR4 2400*/ 2133
* 7th Gen Intel CPU supports DDR4 up to 2400; 6th Gen Intel CPU supports DDR4 up to 2133.
Maximum Memory Supported
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 Supported
Dual Channel

Expansion Slots

PCI Express 3.0 x16
2 x PCI Express 3.0 x16 Slots (PCIE1: x16 mode; PCIE3: x4 mode)*
* Supports NVMe SSD as boot disks
PCI Express x1
1 x PCI Express 3.0 x1 Slot (Flexible PCIe)
PCI Slots
1 x PCI Slot

Storage Devices

SATA 6Gb/s
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.
1 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

Onboard Audio

Audio Chipset
Realtek ALC892
Audio Channels
7.1 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.

Onboard LAN

LAN Chipset
Intel I219-V
Max LAN Speed

Rear Panel Ports

1 x PS/2 Mouse Port
1 x PS/2 Keyboard Port
Video Ports
1 x D-Sub Port
1 x DVI-D Port
1 x HDMI
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
USB 3.1
3 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 1.1/2.0
2 x USB 2.0 Ports (Supports ESD Protection (ASRock Full Spike Protection))
Audio Ports
HD Audio Jacks: Line in / Front Speaker / Microphone

Internal I/O Connectors

Onboard USB
2 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 Connectors
1 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.

Physical Spec

Form Factor
Micro ATX
Dimensions (W x L)
9.6" x 9.6"
Power Pin
1 x 24-pin ATX Power Connector
1 x 8-pin 12V Power Connector


Unique 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

- 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:
- ASRock APP Charger
- ASRock XFast LAN
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Instant Flash
- ASRock Internet Flash
- ASRock Crashless BIOS
- ASRock UEFI Tech Service
*These utilities can be downloaded from ASRock Live Update & APP Shop.

Support CD:
- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

Hardware Monitor:
- CPU/Chassis temperature sensing
- CPU/Chassis Fan Tachometer
- CPU/Chassis Quiet Fan (Auto adjust chassis fan speed by CPU temperature)
- CPU/Chassis Fan multi-speed control
- CASE OPEN detection
- Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM, PCH 1.0V

- Microsoft Windows 10 64-bit (For 7th Gen Intel CPU)
- Microsoft Windows 10 64-bit / 8.1 64-bit / 7 32-bit / 7 64-bit (For 6th Gen Intel CPU)*
*To install Windows 7 OS, a modified installation disk with xHCI drivers packed into the ISO file is required. Please check our User Manual for more detailed instructions.
*For the updated Windows 10 driver, please visit ASRock's website for details.

- ErP/EuP ready (ErP/EuP ready power supply is required)


Package Contents
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 2 x Screws for M.2 Sockets

Motherboard ASRock B250M Pro4 LGA 1151

  • Product Code: Motherboard ASRock B250M Pro4 LGA 1151
  • Availability: 1
  • 60,000 Դ

Tags: Motherboard ASRock B250M Pro4 LGA 1151