Definition

SATA Express (SATAe)

Contributor(s): Kim Hefner

SATA Express (SATAe or Serial ATA Express) is a section within the SATA v3.2 specification that defines connectors for host and device connectors that support SATA and PCI Express (PCIe) protocols simultaneously.

The new host connector supports up to two SATA ports or two PCIe lanes. A separate signal, driven by the drive, tells the host if the device is SATA or PCIe. This allows the motherboard to have a single connector to support a current SATA or PCIe drive.

At the logical interface level, SATAe supports the Advanced Host Controller Interface (AHCI), which enables a PCIe device to be compatible with SATA software environments. NVM Express (NVMe), which is architected for high-performance solid-state drives, can be used as the logical device interface for attached PCIe storage devices.

This was last updated in September 2014

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