Quanergy Solutions Inc

Any device whose MAC address begins with D4:C9:B2 has a network interface built by Quanergy Solutions 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

D4:C9:B2

Organization

Quanergy Solutions Inc

Address

128 Baytech Dr San Jose US 95134

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.