Function and purpose: Card test adapter board converts a PCIE X16 slot in a 1U server into a PCIE X1 slot, enabling testing and debugging of card performance. Compatibility and design: Supports PCIE X1 slots and is suitable for a variety of cards. Simple and easy to use, with 1U server installation in mind. Constructed from durable performance materials to support reliable operation. Environment and suitability: Ideal for data centers, computer maintenance centers, and other professional environments where card testing and validation are required. Target users and benefits: Suitable for computer enthusiasts and hardware engineers who need to test and evaluate card performance in a controlled PCIe environment. Use scenarios: In data centers, test PCIe addon cards in a 1U server before deployment. In maintenance labs, benchmark and debug PCIe cards to verify compatibility and performance. During development, prototype PCIe configurations and assess how cards interact with a PCIE X16 to X1 setup.