
MI991
Mini-ITX Motherboard with 7th/6th Gen Intel® Xeon® E3 / Core™ i7/i5/i3 / Pentium® / Celeron® Processors
Mini-ITX Motherboard with 7th/6th Gen Intel® Xeon® E3 / Core™ i7/i5/i3 / Pentium® / Celeron® Processors. Local warranty support and engineering customization available on request.
Specifications
| CPU Socket | LGA1151 |
|---|---|
| CPU | 7th/6th Gen Intel® Xeon® E3/ Core™ i7/i5/i3/ Pentium®/ Celeron® QC/ DC processors, up to 4.0GHz |
| PCH | MI991AF-C236: Intel® C236 PCHMI991AF: Intel® Q170 PCHMI991EF: Intel® H110 PCH |
| Memory | 2x DDR4 SO-DIMM, Max. 32GB (supports ECC by CPU SKUs) |
| BIOS | AMI |
| Watchdog Timer | 256 levels |
| H/W Monitor | Yes |
| Storage Device Interface | 1x mSATA |
| Expansion Slots | 1x PCI-E (x16) |
| Mini Type Slots | 2x Mini PCI-E |
| Graphics Controller | 7th/6th Gen Intel® Xeon®/ Core™ i7/i5/i3/ Pentium® processor Integrated |
| Video Output | Supports DVI-D, HDMI and DisplayPort |
| Ethernet | MI991AF: Intel® I219LM Gigabit LAN PHYMI991EF: Intel® I219V Gigabit LAN PHYIntel® I211AT or I210AT Gigabit LAN( as 2nd LAN) |
| I/O Chip | Fintek F81846D-I |
| Serial Port | 3x RS232, 1x RS232/422/485 (jumper-less selection) |
| USB 2.0 | MI991EF: 2x USB 2.0 on board2x USB 2.0 via pin-header |
| USB 3.X | MI991AF series: 6x USB 3.0 on boardMI991EF: 4x USB 3.0 |
| Serial ATA | MI991AF series: 4x SATA IIIMI991EF: 3x SATA III |
| Audio | Intel® C236/ Q170/ H110 PCH built-in HD audio + Realtek ALC888S codec |
| TPM | TPM (1.2) |
| Others | Digital I/O(4-in/4-out), EuP/ErP, RAID, iAMT (11.0), iSMART |
| Dimensions (L x W) | 170mm x 170mm (6.7" x 6.7") |
| Power Consumption | Intel® Core™ I5-6500TE 2.3GHz w/ 2x DDR4-2133 4GB+12V: 3.56A; +5V: 1.28A; +5VSB: 0.08A; +3.3V: 0.32A |
| 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) |
I/O — Rear panel

Front access
Where the MI991 is deployed
Desktop-class compute in custom industrial enclosures and rack systems.
CNC controller hosts, robotic coordinators, and motion-control platforms.
Base platform for OEMs building their own industrial PC housings.
Drop-in replacement for end-of-life industrial motherboards in fielded systems.
Our applications engineers will match your environment, software stack and I/O requirements to the right platform — or modify this one.
TALK TO AN ENGINEERResources
- DOWNLOAD ↓MI991 datasheetPDF document
- DOWNLOAD ↓MI991 driver packageFull driver set · via Google Drive
- DOWNLOAD ↓Introduction to Watchdog TimerPDF document
Licensed customers get access to BIOS source, schematics, and full production test documentation.
REQUEST PORTAL ACCESS

