COMPTIA A+ Practice Exam

The speed of a PCI Express Card, often referred to as PCIe, can vary based on the version and lane configuration. The key attribute of PCIe technology is its high data transfer rates, allowing for efficient communication between a computer's motherboard and attached peripherals.

In this case, the choice of 2.5 Gbps aligns with the specifications of PCIe Gen 1, which offers a throughput of up to 2.5 Gbps per lane. This is a fundamental characteristic of the PCIe architecture, where the performance scales with the number of lanes; for example, a x16 configuration can achieve up to 40 Gbps. This high bandwidth is what makes PCIe a popular choice for various applications, from graphics cards to storage solutions.

In contrast, the other options represent either power ratings or speeds associated with different technologies, demonstrating that the correct answer is indeed about the high-speed capabilities that PCIe is known for, reinforcing the relevance of 2.5 Gbps in the context of this type of interface.