pci expansion slots
Allegro USB-C PCIe USB 3.2 Gen 2
The Mac Pro has four PCIe expansion slots (one double-wide 16-lane PCI Express slot is occupied by the NVIDIA GeForce 7300 GT in the default configuration, and three full-length PCI Express expansion slots are open).
Dual Chamber, Tempered Glass, Mid Tower ATX Case
Case Material, SECC, Tempered Glass. M/B Compatibility, 12” x 13” E-ATX , ATX , Micro-ATX , Mini-ITX. Expansion Slots, PCI-E Slots x 7. Vertical PCI-E Slots x 2
PCIe CPU and PCH ? - CPUs, Motherboards, and Memory - Linus Tech ...
PCIe Adapter - PCI Slot Expansion Use your existing PCI Express connection to expand to an additional 4 PCI Slots in your system, the CGS-1PCIe4x is a ...