MAC address D4:CF:F9: manufacturer Shenzhen SEI Robotics Co.,Ltd
Monitore os PCs da sua empresa em tempo real, com dados objetivos.
Testar grátis 14 dias →The MAC address D4:CF:F9 (or D4CFF9, without separators) identifies a device made by Shenzhen SEI Robotics Co.,Ltd. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with D4:CF:F9?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix D4:CF:F9 is registered to Shenzhen SEI Robotics Co.,Ltd. Any device whose MAC starts with D4:CF:F9 (for example, D4:CF:F9:1A:2B:3C) was made by this company.
What it means to see this device on your network
Knowing the manufacturer helps identify what is connected to your Wi-Fi or company network. A Shenzhen SEI Robotics Co.,Ltd MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there. Shenzhen SEI Robotics Co.,Ltd has 4 MAC prefixes registered with the IEEE (see others under "Read also").
How to see every device and vendor on your network
Looking up one MAC vendor at a time is tedious. Sentinela, by PC Monitor, automatically maps every device on your network, shows each one's vendor by MAC and flags suspicious devices and connections — running on your Windows. Meet Sentinela.
Prefere falar com a gente antes de instalar?
Deixe seus dados e um especialista mostra, no seu contexto, como o PC Monitor ajuda a resolver isso na sua empresa. Sem compromisso.
Perguntas frequentes
Who owns MAC address D4:CF:F9?
The prefix D4:CF:F9 (D4CFF9) is registered with the IEEE to Shenzhen SEI Robotics Co.,Ltd.
What is the OUI of a MAC address?
It is the first three blocks of the MAC (6 hex digits), which the IEEE assigns to each manufacturer.
Is every D4:CF:F9 MAC from Shenzhen SEI Robotics Co.,Ltd?
Yes. Any MAC starting with D4:CF:F9 was assigned to Shenzhen SEI Robotics Co.,Ltd by the IEEE, though the final product may be sold under another brand.