Built with the Realtek RTL8127 controller and a single SFP+ port supports 10G/1GbE dual-speed auto-negotiation for flexible fiber and high-speed network deployment.; Occupies only a tiny PCIe 4.0 x1 slot, saving your x16 slot for a GPU requires a PCIe 4.0 slot to reach full 10G speed.; Supports UEFI-mode PXE network boot for remote system deployment and batch maintenance (Legacy BIOS PXE not supported); built-in WOL for remote wake-up.; Plug and play on Windows 10/11, Linux, Ubuntu and CentOS ready for desktops, workstations and small servers.; Optimized high-speed circuit design for low latency and stable fiber transmission; pairs with DAC/AOC/fiber modules for NAS and switch links.