PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity.

FROZR AI COOLING
Detecting CPU & GPU temperatures and automatically adjusting fan duty of system fans to a proper value by adopting MSI AI ENGINE.

FULLY CONTROLLABLE IN BIOS AND SOFTWARE
MSI motherboards let you manage speeds and temperatures for all your system and CPU fans. Total Fan Control allows you check your primary system characteristics in a simplified graphical interface. You can also set up to 4 temperature targets for CPU and motherboard, which will adjust the fan speeds automatically.

LOW LATENCY GAMING LAN POWERED BY INTEL
Stay connected with Intel LAN, optimized for stable internet throughput ideal for championship level online plays.

LIGHTNING GEN 4 PCI-E
MSI lightning Gen 4 PCI-E is the latest and the fastest PCI-E data transfer solution with 64GB/s of transfer bandwidth that has doubled compared to its previous generation. PCIe 4.0 maintains both backward and forward compatibility with older and newer specifications. Optimized by steel armor design, your motherboards can support the weight of heavy graphics cards.

A HUGE STEP OF DDR PERFORMANCE
MSI OC LAB does not merely work hard on extreme overclocking. The XMP memory profile has great improvement on performance and efficiency for B660 . Easy to enable XMP profile with auto power settings to get the best memory speed and stability.

CORE BOOST
Core Boost technology combines MSI's premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU overclocking.

Specification

Product
Product id	815321
Brand	MSI Micro-Star International
Partnr	PRO B660M-E
EAN/UPC code
Warranty (months)	24 months
Processor
Processor manufacturer	Intel
Processor socket	LGA 1700
Compatible processor series	Intel Celeron, Intel Pentium Gold
Memory
Supported memory types	DDR4-SDRAM
Number of memory slots	2
Non-ECC	Y
Supported memory clock speeds	2133, 2666, 2933, 3200 MHz
Maximum internal memory	64 GB
Supported memory clock speed (max)	3200 MHz
Unbuffered memory	Y
Storage controllers
Supported storage drive interfaces	SATA III
RAID levels	0, 1, 5, 10
RAID support	Y
Internal I/O
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
Number of SATA III connectors	4
Front panel audio connector	Y
ATX Power connector (24-pin)	Y
Chassis intrusion connector	Y
TPM connector	Y
12V power connector	Y
Rear panel I/O ports
USB 2.0 ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	1
VGA (D-Sub) ports quantity	1
HDMI ports quantity	1
HDMI version	2.1
Network
Ethernet LAN	Y
Ethernet interface type	Gigabit Ethernet
LAN controller	Intel I219V
Features
Component for	PC
Motherboard form factor	Micro ATX
Motherboard chipset family	Intel
Motherboard chipset	Intel B660
Audio chip	Realtek ALC892 / Realtek ALC897
Audio output channels	7.1 kanalen
Expansion slots
PCI Express x1 slots	1
PCI Express x1 (Gen 3. x) slots	1
PCI Express x16 slots	1
PCI Express x16 (Gen 4. x) slots	1
Number of M.2 (M) slots	1
BIOS
Clear CMOS jumper	Y
Weight & dimensions
Width	24.4 mm
Depth	21.1 mm
Packaging content
Cables included	SATA
Drivers included	Y