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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.

  • CPU Socket TypeLGA 1151
  • CPU TypeSupports 7th/6th generation Intel Core i3/i5/i7 processors w
  • ChipsetIntel B250
  • Memory StandardSupports dual-channel DDR4 2400/2133MHz memory
  • Maximum Memory Supported32GB
  • 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.

Highlights

  • 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

Specifications

BrandMSI
SeriesMSI B250I GAMING PRO AC
ModelMSI B250I GAMING PRO AC
CPU Socket TypeLGA 1151
CPU TypeSupports 7th/6th generation Intel Core i3/i5/i7 processors with LGA 1151, as well as Intel Pentium and Celeron processors
ChipsetIntel B250
Memory StandardSupports dual-channel DDR4 2400/2133MHz memory
Maximum Memory Supported32GB
PCI Slots1 PCIe 3.0 x16 slot
1 M.2 Wi-Fi/Bluetooth module vertical slot
SATA RAID1XM.2 interface, 4xSATA III interface
Audio ChipsetRealtek ALC887 decoding chip
- 7.1 channel high-quality sound effects
LAN Chipset1 Realtek RTL8111H Gigabit network interface card
Onboard USB- 6 USB 3.1 Gen1 (SuperSpeed USB) ports (4 ports on the backplane, 2 via onboard USB ports)
- 4 USB 2.0 (High-speed USB) ports (2 ports on the backplane, 2 via onboard USB ports)

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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