---
model: IMB550
lifecycle: active
official_site_status: Available
category: Boards & Modules > Industrial & Embedded Motherboard > ATX Motherboard
source: https://www.axiomtek.com/products/boards-and-modules/industrial-and-embedded-motherboard/atx-motherboard/imb550
updated: 2026-11-08
---

# IMB550

ATX Motherboard with LGA1851 Socket Intel® Core™ Ultra 9/7/5 Processors, Intel® W880, USB 3.2 Gen 2, SATA 3.0, 2.5GbE, DisplayPort++, and HDMI

- Category: Boards & Modules > Industrial & Embedded Motherboard > ATX Motherboard
- Status: Active

## Key features

- LGA1851 socket Intel® Core™ Ultra 9/7/5 Processors
- 4 288-pin DDR5-5600 ECC/non-ECC unbuffered Long-DIMM, up to 192GB
- Supports DisplayPort++ and HDMI
- Supports 2 x M.2 Key M 2280
- Supports 2 PCIe x16 slots with PCIe Gen 5 for GPU cards
- Supports IPMI 2.0 (optional)
- Optimized CPU socket layout design for airflow of rackmount system

## Specifications

- **CPU:** LGA1851 socket Intel® Core™ Ultra 9/7/5 Processors, up to 125W (Arrow Lake-S)
- **Chipset:** Intel® W880
- **System Memory:** 4 x 288-pin DDR5-5600 ECC/non-ECC un-buffered Long-DIMM, up to 192GB (ECC memory available only for Intel® W880)
- **BIOS:** AMI
- **COM:**
  - 2 x RS-232 (internal box header)
  - 2 x RS-232/422/485 (internal box header)
- **USB:**
  - 4 x USB 3.2 Gen 2 x1 (10G)
  - 4 x USB 3.2 Gen 1 x1 (5G) (rear I/O)
  - 2 x Dual USB 3.2 Gen 1 x1 (5G) (internal, box header)
  - 1 x USB 2.0 (internal, 180D Type-A)
- **Ethernet:**
  - 1 x 10/100/1000 Mbps (Intel® I219-LM, Intel® AMT with Intel vPro®)
  - 2 x 10/100/1000/2500 Mbps Ethernet (Intel® I226-V)
  - 1 x 10/100/1000Mbps IPMI LNA (Intel® I210-AT shared with AST2600) (optional)
- **Display:**
  - 1 x HDMI 1.4b, up to 4096 x 2160 @ 24Hz
  - 1 x Displayport++ (DP 1.2), up to 4096 x 2304 @ 60Hz
- **Digital I/O:** 8-channel programmable
- **Audio:** MIC-in/Line-in/Line-out
- **Storage:**
  - 4 x SATA-600 with RAID 0/1/5/10
  - 2 x M.2 key M 2280 in support of PCIe x4 via CPU with RAID 0/1
- **Expansion:**
  - 2 x PCIe x16 slots (signal: PCIe Gen 5 x16 + PCIe x0 or PCIe Gen 5 x8 + PCIe Gen 4 x8)
  - 5 x PCIe x4 slot open ended 3 x PCIe x4 signal, slot 3 & 6 PCIe x2 signal (signal by PCH)
- **Others:**
  - IPMI 2.0 supported by OpenBMC (optional)
  - 1 x PS/2 keyboard (rear I/O)
  - 1 x PS/2 mouse (rear I/O)
- **Power Consumption:**
  - Intel® Core™ Ultra 9 Processor 285K with 32GB (2 x DDR5-5600 16GB)
  - Power requirements:
  - +12V_CPU @15.0A
  - +5V @ 2.8A
  - +3.3V @ 0.5A
- **Power Input:** 24-pin + 8-pin ATX connector
- **Battery:** Lithium 3 V/ 220 mAH
- **TPM:** TPM 2.0
- **Watchdog Timer:** 255 levels, 1 to 255 sec.
- **Hardware Monitoring:** Yes
- **Operating Temperature:** 0°C to +60°C (+32°F to +140°F)
- **Relative Humidity:** 10% to 95% relative humidity, non-condensing
- **Dimensions:** 305 x 244 mm
- **Board Thickness:** 1.6 mm
- **Certifications:** CE

## Ordering information

- IMB550-W880-SP (P/N E38F550102) — ATX motherboard with LGA1851 socket Intel® Core™ Ultra 9/7/5 Processors, Intel® W880, USB 3.2 Gen 2, SATA 3.0, 2.5GbE, DisplayPort++ & HDMI, and single pack
- IMB550-W880-BP (P/N E38F550101) — ATX motherboard with LGA1851 socket Intel® Core™ Ultra 9/7/5 Processors, Intel® W880, USB 3.2 Gen 2, SATA 3.0, 2.5GbE, DisplayPort++ & HDMI, and bulk pack
- 2 x USB 3.2 Gen 1 cable with bracket, L=400 mm (P/N 5948C122800E)
- SATA 3.0 signal cable, L=500 mm with locking latch (P/N 594G5208000E)
- SATA 3.0 signal cable, L=500 mm without locking latch (P/N 594G5208010E)
- 1 x COM port cable with bracket, P=2.54 mm, L=300 mm (P/N 59380402010E)
- 2 x COM port cable with bracket, P=2.54 mm, L=300 mm (P/N 59380703000E)
- 1U CPU cooler with smart fan (P/N 713000000500)
- CPU cooler for 2U, 4U, and wall-mount chassis with smart fan (P/N 711000002500)

## Sources

- Official product page: https://www.axiomtek.com/products/boards-and-modules/industrial-and-embedded-motherboard/atx-motherboard/imb550
- Official datasheet (PDF): https://www.axiomtek.com/Download/Spec/imb550.pdf

## Sales contact

- TC Lee, Business Development Manager, Axiomtek
- Email: tc.lee@axiomtek.com.tw
- LinkedIn: https://www.linkedin.com/in/t-c-lee/
- WhatsApp: https://wa.me/886955040637

_Maintained by TC Lee, Business Development Manager at Axiomtek. This is not the official Axiomtek website: specifications are mirrored from https://www.axiomtek.com, which is authoritative._