What this means

The IEEE assigned the MA-L block 5CCAD3 to CHIPSEA TECHNOLOGIES (SHENZHEN) CORP.. 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 5C:CA:D3, it is CHIPSEA TECHNOLOGIES (SHENZHEN) CORP. hardware.