What this means
The IEEE assigned the MA-L block 54C9DF to FN-LINK TECHNOLOGY LIMITED. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 54:C9:DF, it is FN-LINK TECHNOLOGY LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix 54C9DF?
54C9DF is registered to FN-LINK TECHNOLOGY LIMITED in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. FN-LINK TECHNOLOGY LIMITED's block covers 16,777,216 addresses.
What devices use 54C9DF?
Any network device with a MAC address starting 54:C9:DF was manufactured by or for FN-LINK TECHNOLOGY LIMITED.