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Compact Mini-ITX board, black PCB with silver heatsinks and rear I/O shield

MSI

MSI B250I GAMING PRO AC Intel motherboard

SKU CH-RFR1-2MEHP

Mini-ITX Intel B250 board for 6th/7th Gen Core CPUs, LGA 1151, dual-channel DDR4 2400/2133 up to 32GB, one PCIe 3.0 x16, four SATA, six USB 3.1 Gen1, Realtek ALC887 7.1 audio, Gigabit LAN.

  • ProcessorSupports 7th/6th generation Intel Core i3/i5/i7 processors w
  • ChipsetIntel B250
  • CPU socketLGA 1151
  • Supported memorySupports dual-channel DDR4 2400/2133 MHz memory
  • Max supported RAM32 GB
  • PCI slots1 PCIe 3.0 x16 slot 1 M.2 Wi-Fi/Bluetooth module vertical sl
  • Compact Mini-ITX board fits small chassis while supporting 7th/6th gen Intel Core processors on LGA 1151 socket
  • Dual-channel DDR4 memory up to 32 GB at 2400/2133 MHz for responsive multitasking
  • Realtek ALC887 codec delivers 7.1 channel audio for immersive sound
  • Intel B250 chipset provides one PCIe 3.0 x16 slot plus M.2 and four SATA connections
  • Built-in Wi-Fi/Bluetooth module with vertical M.2 slot and Realtek RTL8111H Gigabit LAN for wireless and wired networking

LGA 1151 Mini-ITX board for compact builds

This MSI B250I GAMING PRO AC motherboard uses the Intel B250 chipset on a Mini-ITX form factor. It accepts 6th and 7th generation Intel Core i3, i5 and i7 processors plus Pentium and Celeron CPUs in the LGA 1151 socket. Dual-channel DDR4 memory runs at 2400 or 2133MHz up to 32GB total capacity. A single PCIe 3.0 x16 slot handles a discrete graphics card.

Suits small-form-factor gaming or office rigs

Builders wanting a tiny system with integrated Wi-Fi and 7.1 audio from the Realtek ALC887 codec will fit here. The Realtek RTL8111H Gigabit LAN provides wired networking. Six USB 3.1 Gen1 ports and four USB 2.0 ports cover peripherals. Anyone needing multiple graphics cards, more than one M.2 drive or newer 8th-generation CPUs should choose a different platform.

32GB DDR4 ceiling decides the upgrade path

Four SATA III ports and one M.2 interface connect storage. The board ships with a CMOS battery, one SATA cable, an I/O shield and a Wi-Fi antenna. No other accessories are included. Verify that your CPU cooler clears the Mini-ITX layout before ordering.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $82.99
Cheaper than about 59% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Product lineMSI B250I GAMING PRO AC
Model nameMSI B250I GAMING PRO AC
Processor
ProcessorSupports 7th/6th generation Intel Core i3/i5/i7 processors with LGA 1151, as well as Intel Pentium and Celeron processors
CPU socketLGA 1151
ChipsetIntel B250
Memory
Supported memorySupports dual-channel DDR4 2400/2133 MHz memory
Max supported RAM32 GB
Storage
SATA and RAID support1XM.2 interface, 4xSATA III interface
Audio & video
Audio chipRealtek ALC887 decoding chip
- 7.1 channel high-quality sound effects
Connectivity
Ethernet controller1 Realtek RTL8111H Gigabit network interface card
Ports & slots
PCI slots1 PCIe 3.0 x16 slot
1 M.2 Wi-Fi/Bluetooth module vertical slot

Questions about this item

How do I install the CPU into the LGA 1151 socket on this Mini-ITX board, and what is the common mistake?

Lift the retention arm, align the processor notches with the socket keys, lower the CPU gently without pressure, then close and lock the arm; the frequent error is forcing the chip before the notches are perfectly seated, which can bend socket pins.

What maintenance will the M.2 Wi-Fi module slot and the four SATA III ports need over time?

The M.2 slot and SATA III ports are passive connectors; keep them dust-free with compressed air and reseat cables or modules only if a drive or wireless card drops out of the BIOS device list.

Which limit appears first when the Realtek RTL8111H Gigabit LAN runs sustained transfers?

The single RTL8111H controller caps throughput at one gigabit per second, so continuous large-file copies will saturate that link before the PCIe 3.0 x16 slot or the six USB 3.1 Gen1 ports reach their own ceilings.

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