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This PCIe x4 OCuLink host adapter converts an internal PCIe 3.0/4.0 x4 slot on your mainboard into an external OCuLink SFF-8612 interface. You can attach SFF-8611 OCuLink cables to link external U.2 SFF-8639 NVMe SSD enclosures, great for high-speed storage expansion on workstations, mini PCs and rack servers.
It uses pure passive signal transmission without additional control chips, retaining complete native PCIe bandwidth to unlock full performance of enterprise NVMe SSDs. The external SFF-8612 port works with all standard SFF-8611 OCuLink cables for reliable long-distance storage wiring.
A durable full-height metal PCI mounting bracket is supplied for secure chassis fixation. The multi-layer anti-interference PCB and gold-plated contacts minimize signal loss and prevent intermittent drive dropouts during 24/7 heavy workloads like video editing, database operation and virtualization.
The adapter supports UEFI bootable NVMe drives with simple plug-and-play operation, no complex driver setup needed. It is an affordable expansion accessory for content creators, data center hardware and compact workstations without built-in OCuLink headers.