SD Biosensor

Any device whose MAC address begins with C4:30:CA has a network interface built by SD Biosensor. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C4:30:CA

Organization

SD Biosensor

Address

C-4th & 5th Floor, Digital Empire Building, 980-3 Suwon-si Kyonggi-do KR ASI|KR|KS002|SUWON

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.