








M.2 (A+E Key) to SATA3.0 Expansion Card provides a compact method for adding two SATA storage interfaces through an M.2 A+E Key slot. Designed for compact PCs and embedded computing platforms, this dual‑port SATA adapter enables systems such as LattePanda Delta/Alpha to connect additional SSDs or hard disk drives through standard SATA data cables. Leveraging PCIe 3.1 bandwidth, the storage expansion board delivers faster data transfer performance compared with earlier PCIe 2.0 solutions while maintaining stable and energy‑efficient operation. This miniature storage interface adapter offers a practical upgrade path for high‑performance edge computing and embedded storage systems.
Note: This M.2 (A+E Key) to SATA3.0 Expansion Card is not compatible with LattePanda V1.
Dual SATA Storage Expansion via M.2 Interface
This compact M.2 storage adapter converts a single M.2 (A+E Key) slot into two standard SATA 3.0 ports, enabling simultaneous connection of multiple SSDs or hard drives. Installation simply involves inserting the board into the motherboard’s M.2 slot and attaching SATA data cables to storage devices. The dual‑port SATA expansion design makes the board suitable for embedded computers, compact PCs, and maker systems requiring additional storage capacity without occupying traditional PCIe expansion slots.

Figure: M.2 (A+E Key) to SATA3.0 Expansion Card
High-Speed Data Transfer with PCIe 3.1 Bandwidth
Integration with the PCI Express 3.1 bus provides significantly improved data throughput compared with PCIe 2.0‑based adapters. This PCIe‑to‑SATA controller board supports advanced storage features such as AHCI operation, native command queue (NCQ), and port multiplier capability. Enhanced bandwidth and efficient command processing allow connected SSDs or HDDs to deliver faster read/write performance while maintaining reliable operation in embedded computing environments.

Figure: Dimension diagram of the expansion card
Broad System Compatibility for Embedded and Industrial PCs
Wide operating system support allows this SATA expansion module to integrate easily into many computing platforms. Compatibility includes Windows 7 (x86/x64), Windows 8/8.x/10 (x86/x64) using built‑in drivers, and Linux environments. Such flexibility enables deployment in LattePanda Delta/Alpha single-board computers, industrial PCs, servers, and embedded storage solutions where compact expansion and dependable storage connectivity remain essential.

Figure: Example application of the expansion card
This compact storage expansion solution supports applications ranging from edge computing storage nodes and industrial controllers to small form‑factor servers and maker computing platforms. Two SATA ports enable flexible SSD or HDD configurations for data logging, local database storage, media servers, or embedded system deployments requiring reliable multi‑drive connectivity.

Figure: Connection diagram