MSI PRO B660M-A DDR4 Micro-ATX Motherboard

BH #MSPROB660MA • MFR #PRO B660M-A DDR4
MSI PRO B660M-A DDR4 Micro-ATX Motherboard
Key Features
  • Micro-ATX Form Factor
  • Intel B660 Chipset
  • LGA 1700 Socket
  • 4 x Dual-Channel DDR4 DIMMs
Designed to offer the robust power of full-sized motherboards in a compact form factor, the MSI PRO B660M-A DDR4 Micro-ATX Motherboard offers robust functionality suitable for creative users looking to leverage a wide range of components while saving space.
No Longer Available
Ask an Expert
800.606.6969

MSI PRO B660M-A DDR4 Overview

  • 1Description
  • 2Cooling Capabilities
  • 3DIY Friendly
  • 4Protection
  • 5Built for Speed
  • 6BIOS and Updates
  • 7Connectivity Options
  • 8Security

Designed to offer the robust power of full-sized motherboards in a compact form factor, the MSI PRO B660M-A DDR4 Micro-ATX Motherboard offers robust functionality suitable for creative users looking to leverage a wide range of components while saving space.

Based on the Intel B660 chipset, you get access to an LGA 1700 socket designed to house Intel 12th Gen Core, Celeron, and Pentium Gold processors. Four Dual-Channel DDR4 RAM DIMM slots allow you to equip your system with up to 128GB of memory for enhanced multitasking. Connect a wide range of storage drives with four SATA III ports and two M.2 PCIe SSD interfaces. With USB 2.0, 3.2 Gen 1, and 3.2 Gen 2 Type-A ports, you can connect low-powered devices such as mice and keyboards as well as resource-demanding peripherals like external drives, audio interfaces, and more. Arm your system with various graphics and utility cards using the PRO B660M-A's PCIe 4.0 x16, 3.0 x16, and 3.0 x1 slots. A single 2.5 Gigabit Ethernet port enhances your wired network speeds, allowing you to experience low-lag gameplay, ideal for popular competitive online games.

Cooling Capabilities
Designed to keep your system cool even under the heaviest power load, the PRO B660M-A offers an M.2 Shield Frozr heatsink and liquid cooling Pump Fan header to keep components safe. Fully Fan Control and Frozr AI Cooling work together to ensure your internal fans are meeting thermal demands properly through software that can operate automatically or manually.
DIY Friendly
Whether you are new to constructing PCs or a seasoned builder, the PRO B660M-A is designed to offer a variety of enhancements that ease the installation process. An electrical Keep Out Zone prevents accidental shorts by missed stand-offs or screws. EZ M.2 Clip makes inserting and securing storage devices easier. EZ Debug LEDs tell you if there are any faults when you turn your system on, so you know exactly what is causing a problem.
Protection
A Steel Armor PCIe slot provides added strength ideal for heavier graphics cards thanks to extra solder points and metal casing. Double EDS protection adds a grounding layer around the mounting holes and prevents static discharges. The PRO B660M-A is Windows 11 Certified, ensuring a worry-free installation.
Built for Speed
Leveraging the power of PCIe 4.0 technology, you can experience data-transfer speeds up to 64 Gb/s for your M.2 storage and graphics cards. Enhance the speed of your hard-disk drives with Intel Optane Memory, designed to provide an enhanced buffer that speeds up the performance of your storage to meet solid-state-drive performance. Dual-channel DDR4 RAM DIMMs can handle memory frequencies up to 4800 MHz and offers XMP support for a wide range of brands, ensuring your performance meets your standards.
BIOS and Updates
MSI Center unifies a suite of software utilities into a single centralized application, giving you a litany of features enabling you to modify and monitor your system. Hardware Monitoring, System Diagnosis, Fan Center, User Scenario, LAN Manager, True Color, and Profile Setting offer fine-tuning on a hardware level while Mystic Light offers control over RGB lighting across your system and connected peripherals. Click BIOS 5 enables you to adjust various motherboard parameters so you can adjust performance, efficiency, and even overclocking capabilities. Resizable Bar technology streamlines the connection between your GPU and CPU for smoother performance, ideal for gaming and graphically intense programs.
Connectivity Options
With robust connectivity options, you can connect a wide range of devices to the PRO B660M-A without worrying about compromising the performance of your build. Gain faster networking speeds with 2.5 Gigabit Ethernet LAN that works alongside LAN Manager software to prioritize your connection. Experience high-quality sound with Audio Boost, equipped with a dedicated high-definition audio processor, high-quality audio capacitors and audio jacks. Left and right audio signals are isolated on separate PCB layers, preventing crosstalk between each channel. De-Pop Protection reduces the popping sound when plugging and unplugging your devices from the audio jacks. You also get a dedicated input on the motherboard for front-panel USB Type-C access sporting the USB 3.2 Gen 1 interface.
Security
The PRO B660M-A offers enhanced security functions within the BIOS. Secure Boot ensures your system has not been compromised and only starts your system when all components and boot software have been properly verified.

MSI PRO B660M-A DDR4 Specs

Key Specs
Chipset
Intel B660
CPU Socket
LGA 1700
Memory Slots
4x 288-Pin
Memory Support
DDR4 2133, 2400, 2666, 2933, 3200, 3333, 3400, 3466, 3600, 3733, 3800, 4000, 4200, 4266, 4400, 4800 MHz
M.2
2x M Key 2242, 2260, 2280 (PCIe 4.0 x4)
Expansion Slots
1x PCIe 4.0 x16
1x PCIe 3.0 x16 (x4 mode)
1x PCIe 3.0 x1
Form Factor
Micro-ATX
CPU
Chipset
Intel B660
CPU Socket
LGA 1700
Back Panel I/O
USB
2x USB-A (USB 2.0)
2x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
2x USB-A (USB 3.1/3.2 Gen 2)
Thunderbolt
No
Display
2x HDMI
2x DisplayPort
Audio
3x 1/8" / 3.5 mm
Ethernet / Controller
1x Realtek 8125BG 2.5Gigabit
PS/2
1x Combo
Memory
Memory Slots
4x 288-Pin
Memory Support
DDR4 2133, 2400, 2666, 2933, 3200, 3333, 3400, 3466, 3600, 3733, 3800, 4000, 4200, 4266, 4400, 4800 MHz
Maximum Capacity
128 GB
Channel Architecture
Dual Channel
ECC Support
Non-ECC Unbuffered
Storage Expansion
SATA
4x SATA III
M.2
2x M Key 2242, 2260, 2280 (PCIe 4.0 x4)
Optane Memory Support
Yes
RAID Support
RAID 0, 1, 5, 10 (SATA)
Internal I/O
Expansion Slots
1x PCIe 4.0 x16
1x PCIe 3.0 x16 (x4 mode)
1x PCIe 3.0 x1
USB
1x USB 3.0 / 3.1/3.2 Gen 1 Header (Supports 1 USB-C Port)
1x USB 3.0 / 3.1/3.2 Gen 1 Header (Supports 2 USB-A Port)
2x USB 2.0 Header (Supports 4 USB-A Port)
Multi-GPU Support
2-Way AMD CrossFireX
Air Cooling
1x 4-Pin CPU
2x 4-Pin System
Liquid Cooling
1x 4-Pin Pump
Power Connectors
1x 24-Pin Mainboard
1x 8-Pin ATX
1x 6-Pin ATX
Security
Chassis Intrusion, TPM Header
LED Header
3x RGB
Diagnostics
Clear CMOS
Add-On
1x Thunderbolt Card Header
Legacy
1x Serial
Front Panel I/O
Front Panel I/O
AAFP, USB 3.0 / 3.1/3.2 Gen 1
Audio
Audio Codec
Realtek ALC897 (7.1-Channel)
Wireless
Bluetooth
No
Physical
Form Factor
Micro-ATX
Dimensions
9.6 x 9.6" / 24.4 x 24.4 cm
Packaging Info
Package Weight
2.915 lb
Box Dimensions (LxWxH)
11.5 x 11.1 x 3.2"

MSI PRO B660M-A DDR4 Reviews

Almost perfect motherboard

By Serhii
Rated 5 out of 5
Date: 2022-12-25

Advantage: - Full set of VRM heatsinks. Disadvantages: - The battery is glued down. It will be very difficult to replace the battery. - Every DIMM slot has only one latch. I used a lens to double check the non locking side is pushed right in. The disadvantages are not too large in comparison with the absence of VRM heatsinks on a lot of other motherboards, so i give 5 stars to this motherboard.

Good Motherboard

By Tyler
Rated 5 out of 5
Date: 2022-06-16

Good motherboard for what it is! No complaints so far.

See any errors on this page? Let us know