DFI holds 2 MA-L blocks (about 33.6 million addresses) registered as "DFI Inc." — a current block A4:1C:B4 (registered at No.157, Shanying Rd., Gueishan Dist., Taoyuan City, Taiwan) and an older block 00:01:29 (which lists a legacy Taipei Hsien / Hsi-Chih address). These OUIs appear on industrial motherboards and SBCs, embedded systems, COM modules, edge-AI computing, and industrial automation. DFI was historically known as "Diamond Flower Inc." and is one of the oldest motherboard makers, having pivoted from consumer motherboards to industrial and embedded computing; it is a peer to Advantech and Axiomtek. The key analyst point is that a DFI OUI maps to the DFI brand and, because of the consumer-to-industrial pivot, today indicates industrial gear rather than a consumer PC. For triage, a 00:01:29 or A4:1C:B4 device is DFI industrial or embedded hardware — the two blocks (one legacy, one modern) reflect the company's long history.
- IEEE assignment
- 2 prefixes → "DFI Inc." (A4:1C:B4 current, 00:01:29 legacy), Taiwan [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 2 blocks (~33.6M addresses) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- No.157, Shanying Rd., Gueishan Dist., Taoyuan City 333424, Taiwan (A4:1C:B4); legacy Taipei Hsien/Hsi-Chih address (00:01:29) [Confirmed] — hwaddress.com, maclookup.app
- Company status
- active; historically "Diamond Flower Inc.", one of the oldest motherboard makers, pivoted from consumer motherboards to industrial/embedded [Likely] — dfi.com
- Device types
- industrial motherboards/SBCs, embedded systems, COM modules, edge-AI computing, industrial automation [Confirmed] — maclookup.app
- Notable products
- industrial motherboards, COM modules, edge-AI computing
- Verified prefix sample
- 00:01:29 (legacy), A4:1C:B4 (current) [Confirmed] — maclookup.app, devicekb.com
- Special note
- "Diamond Flower" historical name; the consumer-to-industrial pivot means a DFI OUI today indicates industrial gear, not a consumer PC. Peer to Advantech/Axiomtek. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- Advantech, Axiomtek (embedded/industrial-computing peers)
- Analyst note
- A 00:01:29 or A4:1C:B4 device is DFI industrial/embedded hardware; the two blocks (one legacy, one modern) reflect the company's long history.