R42SR M.2 Key-M PCI-E x4 Extension Cord for LattePanda Alpha & Delta & Sigma

The R42SR M.2 Key-M to PCIe x4 extension cord provides a flexible 0.1 m high-speed connection tailored for LattePanda Alpha, Delta, and Sigma single-board computers. It is designed for makers, students, and engineers looking to mount external PCIe cards without mechanical obstruction or signal degradation.

High-speed PCIe 3.0 transmission

The extension cable delivers PCIe 3.0 x4 full-speed bandwidth reaching up to 32 Gbps for high-throughput peripherals. It supports reliable data transmission across its 0.1 m length for demanding storage and expansion setups.

Durable signal-optimised construction

A hole-free differential signal design eliminates parasitic capacitance and inductance interference while preventing CAF micro short circuits. Thickened 1oz copper and gold-plated fingers ensure steady conductivity, protected by a 3 mm PCB gasket secured with screws and hex nuts.

Low-profile PCB clearance

The adapter board features a low-profile footprint engineered to clear adjacent graphics cards during installation. This compact design eases assembly within tight enclosures and minimises the risk of physical board damage.

Broad expansion card compatibility

This extension cord supports standard PCIe x4 expansion devices, including NVMe SSD storage adapters, capture cards, high-speed network cards, and USB adapter cards.

Power and connection requirements

Because the host M.2 interface does not provide 12V power, connected PCIe cards requiring 12V must be supplied with external power to operate. Always verify connector orientation before plugging in and hold the socket firmly to prevent bending pins.