JTOPTICS 400G SR8 is an Eight-Channel, Pluggable, Parallel, Fiber-Optic QSFP Double Density for 2x200 Gigabit Ethernet Applications. This transceiver is a high-performance module for short-range multi-lane data communication and interconnection applications. It integrates eight data lanes in each direction with 8x26.56GBd. Each lane can operate at 53.125Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber with FEC. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm.

400GBASE-SR8 module supports link lengths of up to 100m over multimode fiber (MMF) with MTP/MPO-16 connector. It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard. The 400 Gigabit Ethernet signal is carried over eight wavelengths. Multiplexing and demultiplexing of the eight wavelengths are managed within the device.