M.2 M Key to PCIex4 Expansion Board (Compatible with LattePanda Sigma)

This is an M.2 M Key to 4-way PCIe expansion board specially crafted to complement LattePanda Sigma users. It efficiently addresses the issue of limited PCIe interfaces, ensuring connectivity is never a problem. Its design is driver-free and supports plug-and-play functionality, offering seamless integration with your device.

When paired with the Sigma motherboard, this expansion board allows users to extend into four PCIe channels, enabling the connection of external multi-channel graphics cards and other PCIe peripherals. The versatility of having multiple PCIe interfaces ensures that high-performance additions can be made with ease.

Constructed using a 4-layer circuit board, this expansion board boasts strong anti-interference capabilities, ensuring the stability of PCIe high-speed signal transmission. Features such as data integrity and impedance matching are core, providing reliable performance. Additionally, an aluminum alloy heat sink is integrated to optimize heat dissipation, enhancing operational stability.

It is important to note that all four ports of the board are PCIex1, designed for transmitting PCIe signals rather than USB data. To connect external PCIe devices, it must be used in conjunction with a PCIex1 to PCIex16 adapter card, guaranteeing correct functionality and connectivity.