SteelSeries ApS

Any device whose MAC address begins with 20:AF:1B has a network interface built by SteelSeries ApS. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

20:AF:1B

Organization

SteelSeries ApS

Address

656 West Randolph, Suite 2E Chicago IL US 60661

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.