Which memory configuration requires two memory modules and two slots on the motherboard?

Dual-Channel memory configuration is specifically designed to increase memory bandwidth and overall system performance by allowing two memory modules to work simultaneously. This configuration requires exactly two memory modules installed in corresponding memory slots on the motherboard that support dual-channel operation.

When two identical memory modules are installed in the appropriate slots, they can access the memory controller in tandem, effectively doubling the data throughput compared to a single module setup. This advantage leads to improved performance in memory-intensive tasks, making systems configured this way suitable for gaming, video editing, and other demanding applications.

In contrast, single-channel configurations utilize only one memory module in a single slot, which does not take advantage of the increased bandwidth. Triple-channel configurations require three memory modules, and quad-channel configurations require four, both of which are beyond the dual-channel requirement specified in the question.