Description
This straight‑to‑straight MCIO‑to‑OCuLink cable links a motherboard/HBA MCIO x8 host to two OCuLink 4i devices such as NVMe U.2/U.3 backplanes or add‑in modules. Impedance‑controlled twinax construction and shielding deliver stable performance for PCIe Gen3/4/5 while remaining backward compatible. Positive latches prevent accidental disconnects in vibration‑prone racks. Note: Overall speed is governed by the endpoint ports; OCuLink 4i typically negotiates up to PCIe Gen4 x4 per link.
Specifications
- Connectors: 1× MCIO 8i 74‑pin male to 2× OCuLink SFF‑8611 4i male, straight with latches
- Link mapping: Splits one x8 MCIO into two x4 OCuLink links (platform must support bifurcation)
- Performance: PCIe Gen3/4/5 capable; actual rate limited by device ports (commonly Gen4 on OCuLink)
- Cable type: Internal passive high‑speed twinax, impedance‑controlled, individually shielded pairs
- Color: Black
- Applications: Server and storage interconnects, NVMe/U.2/U.3 backplanes, HBA/riser connections
- Compliance: RoHS REACH