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Last Updated: Apr 25, 2025 | Study Period: 2023-2030
A computer bus interface known as SATA Express, which is occasionally abbreviated as SATAe, was first standardised in the SATA 3.2 specification and supports both Serial ATA (SATA) and PCI Express (PCIe) storage devices. The SATA Express connector used on the host side is backwards compatible with the conventional SATA data connector and offers two PCI Express lanes as a pure PCI Express connection to the storage device.
The SATA interface's creators came to the conclusion that doubling the native SATA speed would result in significantly higher power consumption than the current PCI Express bus, would take too long to keep up with advances in solid-state drive (SSD) technology, and would require too many changes to the SATA standard.
The Global SATA Express SSD market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
On the basis of the Intel Z87 chipset, ASUS unveiled a prototype "Z87-Deluxe/SATA Express" motherboard. Additionally, ASUS displayed some SATA Express hardware that is in the early stages of production and supports the so-called separate reference clock with independent spread spectrum clocking (SRIS).
The SATA Express interface supports both PCI Express and SATA storage devices by exposing two PCI Express 2.0 or 3.0 lanes and two SATA 3.0 (6 Gbit/s) ports through the same host-side SATA Express connector (though not both at the same time).
Without the need of a separate bus abstraction layer, the exposed PCI Express lanes offer a pure PCI Express connection between the host and the storage device. Launched chipsets from Intel, the Z97 and H97, support M.2 and SATA Express. The latter is a specification for internal expansion cards for computers that use flash-based storage.
By utilising numerous channels and various PCI Express versions, choosing PCI Express can further increase the performance of the SATA Express interface. For example, two PCI Express 2.0 lanes may deliver 1000 MB/s of total bandwidth (2 x 5 GT/s raw data rate and 8 x 10 encoding), while two PCI Express 3.0 lanes can deliver 1969 MB/s (2 x 8 GT/s raw data rate and 128 x 130 encoding). On the other hand, SATA 3.0's 6 Gbit/s raw bandwidth essentially equates to 600 MB/s (6 Gbit/s raw data rate with 8b/10b encoding).