EmBestor Technology Inc.

Any device whose MAC address begins with B4:50:62 has a network interface built by EmBestor Technology Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B4:50:62

Organization

EmBestor Technology Inc.

Address

7F, No.1, Chin-Shan 8th St Hsin-Chu, Taiwan TW 300

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.