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Green micro ATX motherboard with black LGA 1150 socket and silver heatsinks

MSI

MSI H81M-E33 LGA 1150 Intel H81 DDR3 16GB Micro ATX Motherboard

SKU CH-ARWH-8ZXF0

Micro ATX board for LGA 1150 CPUs with DDR3 memory up to 16 GB and 8.1-channel audio

  • Processor4th generation Intel Corei7/Corei5/Corei3/Pentium/Celeron pr
  • ChipsetIntel H81
  • CPU socketLGA 1150
  • Supported memorySupports dual-channel DDR3 1600/1333/1066 MHz memory
  • Max supported RAM16 GB
  • PCI slots1 PCIe 2.0 x16 slot 1 PCIe x1 slot
  • Supports 4th gen Intel Core i7/i5/i3 via LGA 1150 socket
  • Dual-channel DDR3 up to 1600 MHz with 16 GB maximum capacity
  • PCIe 2.0 x16 slot plus PCIe x1 for graphics and add-in cards
  • Realtek ALC887 delivers 8.1-channel high-definition audio
  • Realtek 8111G Gigabit LAN with two USB 3.0 ports on rear panel

Socket LGA 1150 Micro ATX board

The MSI H81M-E33 is a Micro ATX motherboard built around the Intel H81 chipset for fourth-generation Intel Core i7, i5, i3, Pentium and Celeron processors using the LGA 1150 socket. It provides a compact foundation for office workstations or basic home PCs where a full-size ATX board is unnecessary.

Dual-channel DDR3 and essential I/O

The board supports dual-channel DDR3 memory at 1600, 1333 and 1066 MHz up to a total of 16 GB. A single PCIe 2.0 x16 slot and one PCIe x1 slot handle graphics or add-in cards, while two SATA III and two SATA II ports connect storage drives. Rear I/O includes two USB 3.0 ports, a Realtek 8111G Gigabit LAN jack and 8.1-channel audio from the Realtek ALC887 codec.

16 GB ceiling and limited expansion

The 16 GB memory ceiling suits everyday multitasking and light content creation but leaves no headroom for heavier workloads. Only one x16 slot and one x1 slot restrict multi-GPU setups or multiple high-bandwidth add-in cards, and the four SATA ports limit the number of internal drives without extra controllers.

How it compares

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

Price $41.99
Cheaper than about 90% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Product lineMSI H81M-E33
Model nameMSI H81M-E33
Processor
Processor4th generation Intel Corei7/Corei5/Corei3/Pentium/Celeron processors supporting Socket 1150 architecture
CPU socketLGA 1150
ChipsetIntel H81
Memory
Supported memorySupports dual-channel DDR3 1600/1333/1066 MHz memory
Max supported RAM16 GB
Storage
SATA and RAID support2XSATA III interface, 2xSATA II interface
Audio & video
Audio chipRealtek ALC887 Audio Chip
- 8.1-channel high-quality sound effects
Compatible with Azalia 1.0 specifications
Connectivity
Ethernet controller1 PCI Express network port supporting 10/100/1000 Fast Ethernet provided by Realtek 8111G
Ports & slots
PCI slots1 PCIe 2.0 x16 slot
1 PCIe x1 slot
Onboard USB headers2 USB 3.0 ports (located on the back panel)

Questions about this item

Does the included CMOS battery need replacing and how often?

A CMOS battery is supplied with the board; replace it when the system clock drifts or BIOS settings clear.

Which part limits expansion first when adding more drives?

Four SATA ports are provided — two SATA III and two SATA II — so the port count is the first constraint.

How loud or hot does the board run during all-day operation?

Passive chipset cooling and no onboard fan keep noise minimal; heat output stays low under typical loads.

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