PCIe 4.0 M.2 M-Key to OCuLink SFF-8611/SFF-8612 Host Adapter, 2260 NGFF NVMe SSD Converter Card for U.2 Drives & External eGPU

This compact 2260-size M. 2 adapter converts a motherboard M-Key NVMe slot into an OCuLink external host port, bridging internal M. 2 NVMe storage to OCuLink peripheral devices via pure PCIe 4.0 x4 signal transmission ( SAS signals not supported ). Built for 2260 NGFF M-Key NVMe SSD slots, it adopts premium 4-layer high-frequency PCB layout with integrated multi-layer shielding to suppress electromagnetic interference from internal power supplies and cooling fans, retaining full Gen4 bandwidth without speed loss over matched OCuLink extension cables. The onboard SFF-8612 female socket natively mates with SFF-8611 and SFF-8612 OCuLink 4i cables for flexible internal/external wiring layouts.

Wide system compatibility: fully bootable under UEFI 2.3. 1 and above, works with Windows 8.1 /10/11 64-bit and Linux Kernel 4.3 +. Ideal for DIY mini workstations, laptop external GPU setups, and enterprise compact servers that need expandable U. 2 NVMe storage without occupying full PCIe slot space. Gold-plated contact pins resist oxidation for long-term stable connection, compact 22×60mm footprint fits tight chassis interiors without airflow obstruction. Easy installation with included mounting screws, no extra driver or power supply required for standard low-power NVMe/eGPU peripherals.