via「Google News search」:

This latest generation cable adapter fits in a PCIe 4.0 x16 half-length, half-height server slot, and features four SFF-8644 cable connectors on the IO bracket for expansion and composable infrastructure applications. OSS plans to begin shipping the HIB68-x16 in Q4 of 2018.
The flexible Gen 4 cable adapter complies with the PCI-SIG PCIe cable standard, and it uses mini-SAS HD and cable management interface (CMI) compliant copper and fiber optic cables. This flexibility allows for the highest speed PCIe system-to-system and rack-to-rack interconnects in data centers, airborne installations and OEM applications, delivering bandwidth up to 256 Gb/s and latency of less than 150 ns.
Gen 4 includes improvements in flexibility, scalability and lower-power due to bandwidth bifurcation options of the cable and modern 16 nm integrated circuit design. OSS expansion customers no longer have to wait for Gen 4 add-in boards since Gen 3 devices can aggregate their bandwidth into a Gen 4 slot in a server. Servers available from major OEMs like IBM currently provide Gen 4 slots for the HIB68-x16. Additional Gen 4 servers and PCIe switches are expected to be announced in 2018 and 2019.

KeyWords Tag:mini sas hd cable