MB991 SPECIFICATIONS

CPU 
LGA1151 for 7th/6th Generation Intel® Core™ i7/i5/i3/
Pentium® / Celeron® QC/ DC processors, up to 4GHz

System Memory 
4x DDR4 DIMM, Max. 64GB (Supports ECC by CPU SKUs)

System Chipset 
Intel® C236/Q170 PCH

BIOS 
AMI

Watchdog Timer 
256 levels

Storage
1x SSD mSATA via Mini PCI-E (Thru SATA III)
1x M.2 slot [Thru PCI-E(x1) x4]

H/W Monitor 
Yes

Expansion Slots 
1x PCI-E(x16), 1x PCI-E(x8), 1x PCI-E(x4)1x Mini PCI-E, 1x M.2

Graphics
VGA Controller 7th/6th Generation Intel® Core™ i7 / i5 / i3 / Pentium®/Celeron® processor Integrated
VGA Memory Max. Shared memory – 1024MB

LAN 
Intel® I219LM Gigabit LAN PHY
Intel® I211AT PCI-E Gigabit LAN

Connector 
RJ-45 on board

Multi I/O Chipset 
Fintek F81846AD-I + F81504D
7x RS232, 1x RS232/422/485 (jumper-less selection),
5x SATAIII

USB 
6 ports on board (USB 3.0)
4 ports via pin-header (USB 2.0)

Audio 
Intel® C236 / Q170 PCH built-in HD audio +
Realtek ALC662 codec

Others 
Digital I/O (4-in/4-out), RAID, iAMT (11.0), iSMART

Dimensions 
244mm x 244mm (9.6“ x 9.6“)

Max. PowerRequirement TBD
Operating Temperature 0°C~60°C ( 32°F~140°F )
Storage Temperature -20°C~80°C ( -4°F~176°F)
Relative Humidity 90% (non-condensing @60°C)