Which of the following Huawei campus switches is the highest-density fixed switch in the industry?

Huawei’s CloudEngine S6780-H is a high-performance fixed switch that:

Offers up to 128 × 25GE ports or 64 × 50GE ports in a compact 1U form factor.

Is recognized as the industry's highest-density fixed campus switch.

Supports powerful features such as VXLAN, telemetry, and flexible NetStream.

Other switches listed:

CloudEngine S8700 is a modular chassis-based switch.

CloudEngine S16700 does not exist (appears to be a typographical error).

CloudEngine S6750-S is high-performance but lower in density than the S6780-H.