电环回模块(Loopback)
| 传输速率 | 调制模式 | 模块封装 | 产品型号 | 最大功耗 |
| 800Gb/s | 8x 100G PAM4 | QSFP112-DD | GQD-MPO801-LP8C | 5W |
| 400Gb/s | 4x 100G PAM4 | QSFP112 | GQS-MPO401-LP4C | 5W |
| 400Gb/s | 8x 50G PAM4 | QSFP56-DD | GQD-MPO401-LP8C | 5W |
| 200Gb/s | 4x 50G PAM4 | QSFP56 | GQS-MPO201-LP4C | 2.5W |
| 200Gb/s | 8x 25G NRZ | QSFP28-DD | GQD-MPO201-LP8C | 5W |
| 100Gb/s | 4x 25G NRZ | QSFP28 | GQS-MPO101-LP | 1W |
| 50Gb/s | 1x 50G PAM4 | SFP56 | GSS-MPO500-LP | 1W |
| 25Gb/s | 1x 25G NRZ | SFP28 | GSS-MPO250-LP | 1W |
| 10Gb/s | 1x 10G NRZ | SFP+ | GSS-MPO100-LP | 1W |







