AGP (Accelerated Graphics Port) SLOT
The AGP slot allows you to insert the AGP graphics card. AGP is an interface specification designed for the throughput demands of 3D graphics. It introduces a 66MHz, 32-bit channel for the graphics controller.
PCI (Peripheral Component Interconnect) Slots
The PCI Slot allow you to insert the expansion cards to meet your needs. When adding or removing expansion cards, make sure that you unplug the power supply first. Meanwhile, read the documentation for the expansion card, such as jumpers, switches or BIOS configuration.