JMT PCIe 4.0 X16 to 4-Port OCuLink SFF-8611/SFF-8612 Expansion Card, PCIe Bifurcation 4x4x4x4 Adapter 64Gbps Compatible with External NVMe SSD Enclosure, NAS, Server, eGPU

JMT PCIe 4.0 X16 to 4-Port OCuLink SFF-8611/SFF-8612 Expansion Card, PCIe Bifurcation 4x4x4x4 Adapter 64Gbps Compatible with External NVMe SSD Enclosure, NAS, Server, eGPU Product Description Upgrade your server, NAS, or desktop with this PCIe 4.0 x16 to 4-Port OCuLink SFF-8611/SFF-8612 Expansion Card. It bifurcates one PCIe 4.0 x16 slot into four independent x4 OCuLink channels (4x4x4x4), allowing you to connect multiple external high-speed devices . Compatible with NVMe SSD enclosures, eGPU docks, and industrial expansion equipment. Key FeaturesPCIe 4.0 x16 interface with 4x4x4x4 bifurcation4 x OCuLink SFF-8611/SFF-8612 portsUp to 64Gbps per x4 OCuLink portBackward compatible with PCIe 3.0/2.0/1.0Signal amplification and impedance matching designFull-height metal PCIe bracket includedSingle-slot low-profile PCB layoutGold-plated PCIe fingers and OCuLink connectors Important Compatibility Note This card does not include a PCIe switch chip. It relies on motherboard/CPU/chipset PCIe lane bifurcation. Please confirm your motherboard supports x4x4x4x4 bifurcation and set the BIOS accordingly. Without this feature, only some ports may work or no device may be detected. Package Contents1 x PCIe x16 4-Port OCuLink SFF-8612 Adapter1 x Full-Height Metal PCIe Bracket2 x 6#-32 Screws Note: OCuLink cables, external NVMe SSD enclosures, eGPU docks, and other devices are not included.

• 4 Independent OCuLink Ports via PCIe x16 Bifurcation Splits one PCIe 4.0 x16 slot into four independent x4 OCuLink channels (4x4x4x4). Each SFF-8611/SFF-8612 port supports full PCIe Gen4 x4 bandwidth, Compatible with external NVMe SSD boxes, OCuLink eGPUs, and industrial expansion devices.
• PCIe 4.0 High-Speed Transmission Supports PCIe 4.0 at 16GT/s, with up to 64Gbps per x4 port. Backward compatible with PCIe 3.0/2.0/1.0. Professional signal amplification and strict PCB impedance matching help reduce signal loss during high-speed data transfer.
• Important: Motherboard Bifurcation Required This adapter requires motherboard/CPU/chipset PCIe bifurcation support. Set BIOS to x4x4x4x4 or equivalent mode before use. Without bifurcation support, ports may not be recognized.
• Sturdy Metal Bracket & Server-Grade Build Includes a thickened full-height metal PCIe bracket for standard ATX/mATX server, and desktop cases. The metal frame aids heat dissipation, structural stability, and EMI shielding for reliable 24/7 operation.
• Universal Compatibility & Durable Design SFF-8611/SFF-8612 dual-compatible interface Compatible with OCuLink cables, external NVMe SSD enclosures, eGPU docks, and industrial modules. Single-slot low-profile PCB with gold-plated PCIe fingers and OCuLink connectors for oxidation resistance and stable transmission.