This is brand new, in original sealed packaging, as pictured. Details about this item from the manufacturer:

• 10 Gbps PCIe Network Card: With the latest 10GBase-T Technology, PE10G delivers extreme speeds of up to 10 Gbps, which is 10× faster than typical Gigabit adapters, guaranteeing smooth data transmissions.
• Standard/Low-Profile Brackets: In addition to the standard bracket, a low-profile bracket is provided for mini tower computer cases.
• Various System Support: PE10G supports Windows 11/10, WindowsServer 2022, Linux & DSM 7.2+ system, just choose it to meet your diversified demands.
• Versatile Compatibility: With extreme speed and ultra-low latency, 10GBase-T is backwards compatible with multiple data rates, automatically negotiating between higher and lower speed connections.
• The included 1.5m Cat6 cable guarantees 10Gbps transmission speed without loss, so you don't need to buy a separate cable for PE10G, ensuring your experience in all aspects.