PCI Express
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PCI Express, officially abbreviated as PCIe, is a high-speed standard used to connect hardware components inside computers. It is designed to replace older expansion bus standards such as PCI, PCI-X a
A PCIe 3.0 ×8 host bus adapter
Various slots on a computer motherboard, from top to bottom: PCI Express ×4 PCI Express ×16 PCI Express ×1 PCI Express ×16 Conventional PCI (32-bit, 5 V)
PCI Express ×1 card containing a PCI Express switch (covered by a small heat sink), which creates multiple endpoints out of one endpoint and lets multiple devices share it
The PCIe slots on a motherboard are often labeled with the number of PCIe lanes they have. Sometimes what may seem like a large slot may only have a few lanes. For instance, a ×16 slot with only 4 PCIe lanes (bottom slot) is quite common.
SATA Express
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SATA Express is a computer bus interface that supports both Serial ATA and PCI Express storage devices, initially standardized in the SATA 3.2 specification. The SATA Express connector used on the hos
Two SATA Express connectors (light gray) on a computer motherboard; to the right of them are common SATA connectors (dark gray)