100G QSFP28 single lambda optical modules are available at Sourcelight. The module converts four 25G electrical signals into a single-wave 100G PAM4 optical signal for data transmission.
| Picture | Model | Product Description | Data Rate | Reach | Tx | Rx | Connector |
 | SLQS28-100G-DRS | QSFP28 DR Single Lambda | 100Gbit/s | 500m | EML | PIN | Duplex LC SM |
| SLQS28-100G-FRS | QSFP28 FR Single Lambda | 100Gbit/s | 2km | EML | PIN | Duplex LC SM |
| SLQS28-100G-LRS | QSFP28 LR Single Lambda | 100Gbit/s | 10km | EML | PIN | Duplex LC SM |
| SLQS28-100G-ERS | QSFP28 ER Single Lambda | 100Gbit/s | 30km | EML | PIN | Duplex LC SM |
