Which of the following expansion cards would provide support for additional internal storage?

A video capture card processes and records analog or digital video input signals and provides no internal storage connectivity.

A modem card provides dial-up or broadband network connectivity over telephone lines and is unrelated to internal storage.

A USB port expansion card adds external peripheral connectivity but does not support additional internal storage devices.

A RAID controller card installs into a PCIe expansion slot and provides additional SATA, SAS, or NVMe ports for connecting internal storage drives. It also handles RAID logic in hardware, enabling striping, mirroring, or parity configurations. This directly expands the system's internal storage capacity and management capabilities.