S1A: PCIPCIe Gen 2, 2 PCI and 2 PCIe slots

pcie slot length   Dan pcie 20 x1 slot

Generally speaking, there are five physical sizes of PCIe cards: x1, x4, x8, x16, and x32 (FYI, PCIe x32 does exist with a maximum of 32 lanes,

The PCIe Slots are usually numbered from 1 to 16, and will be designated by a PCIe x1, x4, x8, or x16 label Remember that these labels refer to Two single-wide full-length x8 gen4 slots One single-wide half-length x4 gen3 slot preconfigured with the Apple IO card The Apple Thunderbolt

loner slot PCI-E and PCI-X Card Guidelines ; 1UXXL PCI-X Full height, half length · 133 MHz ; 1UEEL PCI-E Full height, half A half-length PCI card is one that sits in a 32-bit 33MHz PCI expansion slot •••