The 400G OSFP to 4 x 100G QSFP28 active optical cable is an 8-Channel, pluggable, parallel, fiber optic 400G OSFP to 4 x 100G QSFP28 AOC. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. This active optical cable is compliant with IEEE802.3bs-400GAUI-8, IEEE802.3bm-CAUI-4, OSFP MSA, and SFF-8661.
Thin and lightweight AOC cables simplify cable management, enabling an efficient system airflow, which is critical in high-density racks. It is used extensively in cloud and supercomputers due to its low cost, high-value proposition, and increased reliability.
Note："Finned-top" transceivers are now called "Integrated Heat Sink" (IHS) as the cooling fins are integrated into the OSFP connector metal top. Commonly used in air-cooled switches. "Flat-top" transceivers are now called "Riding Heat Sink" (RHS) as the cooling fins ride on top of the network card or systems internal cages. This is used for both air-cooled and liquid-cooled applications for DGX, ConnectX-7 and BlueField-3 DPUS.
