200G QSFP-DD SR8光模块是200G数据中心短距离多通道互连的解决方案，它的 光接口 为24芯MPO接口， 中心波长 为850nm，支持8路25Gb/s数据通道，每个通道可以使用OM3传输70m或使用OM4传输100m。

200G（8x25G NRZ）QSFP-DD具备低功耗、低延时、易部署等优势。 低功耗：NRZ信噪比比PAM4高9.54dB，与NRZ的收发器相比，一个实现PAM4的收发器由于需要更高级的均衡功能，因此采用PAM4调制会更复杂并且功耗更高，采用NRZ功耗则会较低，这对于优化数据中心的OPEX和冷却效率比较有利。 低延时：PAM4对噪声更敏感、更容易收到噪声影响，相同传输条件下接收误码率更高，因此需要加入了 FEC 前向纠错机制，这就会增加传输时延，而采用NRZ …

GIGALIGHT 200G QSFP-DD SR8 optical transceiver modules are used for short-range interconnections between devices within data centers and are compliant with 200G Ethernet transport protocols, as well as compatible with 8x10G/25G Ethernet and InfiniBand QDR/EDR transport protocols.

Ascent Optics’ QDD-200M885-1HCM The 200G QSFP-DD SR8 850nm 100m optical transceiver is designed for Data Center 2x 100GBASE-SR4 Ethernet and InfiniBand 8x DDR/EDR High-Performance Computing (HPC) or Storage Area Network (SAN) links reach up to 70m (OM3) or 100m (OM4) over Multi-Mode Fiber (MMF).

The 200G QSFP-DD SR8 Transceiver is designed to transmit and receive serial optical data links up to 28 Gb/s data rate(per channel) over multi-mode fiber. It is a small-form- factor hot pluggable transceiver module integrated with the high performance VCSEL …

The Gigalight 200G QSFP-DD SR8 NRZ 100m optical transceiver (GQD-MPO201-DSR4C) is designed for 2x 100GBASE-SR4 Ethernet links reach up to 70m (OM3) or 100m (OM4) over Multi-Mode Fiber (MMF). This high-performance module integrates eight data lanes in each direction with 8x 25.78125GBd.

The Gigalight Technologies GQD-MPO201-DSR4C is a Eight-Channel, Pluggable, Parallel, Fiber-Optic QSFP Double Density for 2x100 Gigabit Ethernet Applications. This transceiver is a high …

QSFP-DD-200G-SR8-MSA-AT – Transceiver Module General Purpose 200Gbps 850nm MPO-16 Pluggable, QSFP-DD from ATGBICS. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

TARLUZ 200G QSFP-DD SR8 Optical Transceiver is a Double Density QSFP Transceivers with eight-channel. It is designed for 200G Ethernet (2 x 100GBASE-SR4) applications. The QSFP-DD transceivers integrate eight data lanes in each direction with 25.78Gb/s bandwidth per channel.

The 200G QSFP-DD SR8 is a Eight-Channel, Pluggable, Parallel, Double Density for 2x100 Gigabit Ethernet Applications. This transceiver is a high performance module for short-range multi-lane data communication and interconnect applications. The optical interface uses an 24 fiber MTP (MPO) connector.