Cynosure Technologies Co.,Ltd

Any device whose MAC address begins with 78:DA:A2 has a network interface built by Cynosure Technologies Co.,Ltd. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

78:DA:A2

Organization

Cynosure Technologies Co.,Ltd

Address

Room 2708/2710, Building No.9A, Shenzhen Bay Science and Technology Ecological Park，Nanshan Shenzhen city Guangdong Province CN 518057

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.