PCIe 3.0 4.0 SFF-8654 Slimline SAS Adapter Card with SFF-8639 U.2 NVMe Cable, PCIe x4 to SlimSAS Converter for Desktop & Server Motherboard U.2 SSD Storage Expansion

This complete storage expansion kit includes a PCIe Slimline SAS adapter card and dedicated SFF-8654 to SFF-8639 U. 2 cable, designed to equip motherboards with native PCIe slots to support high-performance 2.5 -inch U. 2 NVMe SSDs. The PCIe adapter inserts directly into motherboard PCIe x4 slots and outputs a compact SFF-8654 Slimline SAS interface, fully compliant with PCIe 3.0 and PCIe 4.0 standards to deliver maximum bandwidth without performance throttling. The paired cable features SFF-8654 SlimSAS connector on one end and standard SFF-8639 U. 2 port on the other, with built-in 15Pin SATA power lines to provide consistent power supply for power-hungry enterprise NVMe drives, simplifying internal chassis wiring layout.

Constructed with impedance-controlled pure copper differential pairs and dual-layer aluminum foil shielding, the cable eliminates electromagnetic interference and minimizes signal attenuation under heavy continuous read-write workloads. All contact pins on both SFF-8654 and SFF-8639 connectors are gold-plated for enhanced conductivity and long-term oxidation resistance; built-in locking latches secure tight connections to avoid signal dropouts caused by chassis vibration. Comes with standard full-height PCIe bracket, compatible with ATX, MATX, mini ITX desktop PCs and rack/tower servers. Driver-free plug-and-play design supports Windows 10/11, Linux and Windows Server operating systems, exclusively optimized for NVMe PCIe SSDs (not compatible with regular SATA