ASRock B550M-ITX/AC

Motherboards · ASRock

Last checked Jul 29, 2026

Latest Firmware

Version 4.00

Released 2026-06-01

15.3 MB

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Update track record

releases tracked since 2020: 16
typical gap between releases: ~3 months
since the latest release: 58 days
security-related releases · latest 2025-10-15: 3

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Get notified when new firmware is released for this device.

Firmware History

4.00
Latest2026-06-01
Optimized system stability and compatibility.
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3.90
Security2025-10-15
Update Secure Boot Key (2023 KEK/DB/PK).
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Why Keep Your Firmware Updated

Motherboard BIOS/UEFI firmware is essential for hardware initialization and CPU compatibility. Updates often include microcode patches for security vulnerabilities, support for newer processors and memory, and stability improvements. Always use a UPS or ensure stable power during BIOS updates — an interrupted flash can render the board unbootable.

ASRock B550M-ITX/AC

Latest Firmware

Update track record

Get Firmware Update Notifications

Firmware History

4.00

3.90

Why Keep Your Firmware Updated

3.40

3.30

2.62

2.20

2.00

2.10

1.90

1.80

1.70

1.60

1.50

1.30

1.10

1.00