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EMBEDDED SYSTEMS / IN STOCK
MB875
Intel® 852GM Chipset Custom Motherboard for 1U Rackmount
Intel® 852GM Chipset Custom Motherboard for 1U Rackmount. Local warranty support and engineering customization available on request.
CPU
Socket 479 or CPU on board
MEMORY
Two DDR266/333 sockets support up to 2GB
STORAGE
CompactFlash socket, Type II, via IDE2 · Supports Intel® Pentium® M / Intel® Celeron® M processors, up to 2.0GHz @ 400MHz FSB · Intel 852GM Chipset, Two DDR socket, Max. 2GB · Four Intel® 82541PI GbE controllers for four GbE support · Edge connector supporting PCI 33MHz/32-bit interfaces · 4 x COM, 4 x USB 2.0, 2 x SATA, CF socket · Watchdogi timer, 1 x PCI, 1 x Mini PCI · 180mm x 270mm
ETHERNET
Four Intel® 82541PI Gigabit LAN · Four RJ-45 ports on board
Specifications
24 ROWS
| CPU Socket | Socket 479 or CPU on board |
|---|---|
| CPU | Supports Intel® Pentium® M, Celeron® M · Up to 2.0GHz |
| CPU Front Side Bus ( FSB ) | 400MHz |
| Chipset | Intel® 852GM chipset + ICH4 |
| BIOS | Award BIOS |
| System Memory | Two DDR266/333 sockets support up to 2GB |
| VGA | Intel® 852GM integrated graphics · DVMT 2.0 shared memory, Max. 96MB |
| LAN | Four Intel® 82541PI Gigabit LAN · Four RJ-45 ports on board |
| Multi I/O | Winbond W83627HF, Finktek 81216 · Supports 2x IDE (UDMA33/66/100), 2x SATA, · 4x RS-232, 1x KB, 1x Mouse |
| IDE Interface | Two enhanced IDE channel supports: · IDE channel 1 - 40 pin for master; 44 pin for slave · IDE channel 2 - CF socket for master · 2 IDE devices; supports UDMA33/66/100 |
| SSD Interface | CompactFlash socket, Type II, via IDE2 · Supports Intel® Pentium® M / Intel® Celeron® M processors, up to 2.0GHz @ 400MHz FSB · Intel 852GM Chipset, Two DDR socket, Max. 2GB · Four Intel® 82541PI GbE controllers for four GbE support · Edge connector supporting PCI 33MHz/32-bit interfaces · 4 x COM, 4 x USB 2.0, 2 x SATA, CF socket · Watchdogi timer, 1 x PCI, 1 x Mini PCI · 180mm x 270mm |
| Serial ATA | Supports 2 ports |
| USB (2.0) | Supports 2 USB ports on board and 2 USB ports via pin header |
| Watchdog Timer | 256 levels |
| Keyboard and Mouse Connector | PS/2 type |
| Edge Connectors | 4x RJ45, COM1, 2x USB 2.0 |
| Expansion | 1 x Mini PCI socket · 1 x PCI Edge connector supporting PCI 33MHz/32-bit interfaces |
| Power Connector | ATX power connector |
| Other Features | GPInput switch, LEDs on edge include Power LED · HDD Access LED and GPO LED 1/2. |
| Form Factor | Custom Motherboard |
| Dimensions | 180mm x 270mm |
| Operating Temperature | 0°C~60°C (32°F~140°F) |
| Storage Temperature | -20°C~80°C (-68°F~176°F) |
| Relative Humidity | 10%~90% (non-condensing) |
I/O — Rear panel
Front access
Where the MB875 is deployed
USE CASE
Network & security appliances
Firewall, SD-WAN, and traffic-inspection appliances needing multiple NICs.
USE CASE
Edge servers
Local MES, OPC UA aggregation, and time-series buffering at the plant edge.
USE CASE
Expandable industrial systems
Slot-based systems for frame grabbers, DAQ, and FPGA expansion cards.
USE CASE
Rack-mount deployment
1U/2U compute nodes for factory, energy, and telecom environments.
Have a specific use case?
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 ↓MB875 user manualPDF document
- DOWNLOAD ↓Introduction to Watchdog TimerPDF document
CUSTOMER PORTAL
Licensed customers get access to BIOS source, schematics, and full production test documentation.
REQUEST PORTAL ACCESS

