The Clevo W370ST uses a SATA interface for its internal hard drives, including both the primary HDD/SSD slot and the optional optical bay caddy.

Primary Hard Drive Interface

The W370ST laptop supports 2.5-inch SATA hard drives or SSDs in its main storage bay. This SATA connection allows for standard SATA I/II/III drives, providing compatibility with modern SSDs for faster read/write performance and traditional HDDs for larger storage capacity .

Optical Bay Hard Drive Caddy

The laptop also supports adding a second internal drive using an optical bay HDD/SSD caddy. This caddy replaces the 12.7mm optical drive and connects via a SATA interface, allowing users to install a second 2.5-inch SATA drive for additional storage or RAID configurations . Users must remove the optical drive faceplate and bracket to properly install the caddy.

RAID and Storage Configuration

The W370ST supports RAID setups (RAID 0 for striping, RAID 1 for mirroring) when using SATA drives, which can be configured through the BIOS or RAID setup utility. This allows for either improved performance or data redundancy depending on the user's needs .

Summary

• Primary drive slot: 2.5-inch SATA HDD/SSD
• Optional second drive: Optical bay SATA HDD/SSD caddy (12.7mm height)
• RAID support: RAID 0 and RAID 1 for SATA drives
• Compatibility: Standard SATA I/II/III drives, including modern SSDs This setup provides flexibility for upgrading storage, adding faster SSDs, or expanding capacity with a second drive using the optical bay caddy.