LetLinkSo PCIe 5.0 U.2 (SFF-8639) to M.2 NVMe SSD Adapter Card | Enterprise Storage Upgrade for Servers & Workstations

Product Positioning & Applications

This high-performance PCIe 5.0 MCIO x8 to dual SFF-8639 U.2 cable is engineered specifically for enterprise servers, workstations, and high-density data centers. It enables one MCIO port to connect two U.2 NVMe SSDs, effectively solving the problem of insufficient high-speed storage interfaces in server systems. Widely applied in cloud computing, big data analytics, and enterprise storage arrays, it delivers reliable high-bandwidth performance for mission-critical data transfer workloads.

Specifications & Compatibility

Fully compliant with PCIe Gen5 and SAS 4.0 industry standards, featuring 8 data lanes with a maximum transfer rate of 32 GT/s. The cable supports automatic backward compatibility with PCIe Gen4/3/2/1 protocols, ensuring seamless integration with existing server hardware. Connector configuration: 1x straight male MCIO x8 (SFF-TA-1016 74Pin) and 2x straight female SFF-8639 U.2 (68Pin) interfaces, compatible with U.2 NVMe SSDs, server motherboards, and storage expansion cards.

Construction & Material Advantages

Built with enterprise-grade low-loss conductors and multi-layer shielding, this cable achieves exceptional signal integrity even at maximum PCIe 5.0 speeds. Reinforced connector housings enhance mechanical durability, resisting wear and tear from frequent plugging and unplugging in data center environments. The optimized design ensures stable performance under high-temperature, high-humidity conditions, meeting the rigorous requirements of enterprise-level 24/7 operation.

Installation Notes

Plug-and-play installation with no additional drivers required. Simply connect the MCIO end to the servers MCIO host adapter, the U.2 ends to the target SSDs, and the 15Pin SATA connector to the servers power supply. The 0.5ft (15cm) cable length is optimized for internal server routing, reducing cable clutter in high-density chassis. Note: For use with compatible devices only; adapter card not included. Avoid touching gold-plated contacts during installation; shipped in anti-static packaging.

Customization & Bulk Procurement

LetLinkSo provides comprehensive OEM/ODM customization services tailored to enterprise needs, including custom cable lengths (from 15cm to extended distances), bespoke pinout configurations, and adaptation to specialized interfaces such as SlimSAS, MCIO, and OCuLink. For bulk orders related to server cluster deployments, data center expansions, or industrial system integration, we offer tiered pricing discounts, stable production lead times, and dedicated technical support. All cables undergo strict signal integrity and compatibility testing before delivery to ensure reliability at scale.

Product information