LetLinkSo PCIe 5.0 & SAS 4.0 MCIO x8 to 2 x SFF-8639 U.2 Cable, 65cm/2.1ft, 32GT/s Male-to-Female with 15Pin SATA Power for Dual U.2 NVMe SSDs & Servers

Product Positioning & Applications

This PCIe 5.0 MCIO x8 to dual SFF-8639 U.2 cable is purpose-built for enterprise servers and high-density data center storage systems. It enables connecting two U.2 NVMe SSDs simultaneously, supporting high-speed data transfer and storage expansion for big data, cloud computing, and high-performance computing scenarios. Cable length: 65cm (2.1ft).

Specifications & Compatibility

Equipped with 1x straight male MCIO X8 (SFF-TA-1016 74pin) and 2x straight female SFF-8639 U.2 ports. 8 lanes configuration delivers up to 32 GT/s transfer rate, with an integrated 15Pin SATA power interface. Compliant with PCIe 5.0 and SAS 4.0 standards, and backward compatible with PCIe 4.0/3.0/2.0/1.0. Compatible with motherboards, storage expansion cards, and U.2 NVMe SSDs. Adapter card is not included.

Construction & Material Advantages

Constructed with industrial-grade low-loss materials and precision shielding, this cable effectively reduces electromagnetic interference and signal degradation, maintaining excellent signal integrity at PCIe 5.0 speeds. The reinforced connectors and optimized structure ensure long-term durability and stable performance in high-load server environments.

Installation Notes

Plug-and-play operation with no additional drivers required, simplifying batch installation in server setups. Connect the MCIO end to the host adapter, the SFF-8639 ports to the U.2 NVMe SSDs, and the 15Pin SATA power lead to the server power supply. The integrated power delivery system ensures stable power output to dual U.2 SSDs for continuous, error-free operation. For use with compatible devices only.

Customization & Bulk Procurement

LetLinkSo provides comprehensive OEM/ODM customization services for cable lengths, pinouts, and specialized interfaces. Bulk procurement for enterprise server deployments and industrial integration qualifies for volume discounts and dedicated technical support. This listing is for the 2.1ft (65cm) version. We also have 0.5ft and 1.3ft variants available: 0.5ft is ideal for short-distance internal wiring in compact servers; 1.3ft is suitable for standard server internal connections. All cables undergo rigorous testing to ensure reliability at scale.

Product Specifications:

Connector A: 1 x Straight Male MCIO X8

Connector B: 2 x Straight Female U.2(SFF-8639)

Power Supply: 15Pin SATA

Compliance Standards: SCSI (SAS), PCIe Gen5

Compatibility: PCIe 5.0,4.0,3.0, 2.0,1.0

Note: For use with compatible devices only. Adapter card not included.