Model selection
Compare original part-number references.
Use optical specifications to form a shortlist, then confirm your device, firmware and coding requirements.2 references · Page 1 of 1
A specification match is not a host validation result. Multiple matching models remain marked for review.
| Brand | Original part number | Model reference | Optical specification reference | Next step |
|---|---|---|---|---|
| ARISTA | QDD-400G-ER4 | QDD-400G-ER4L | 400GBASE-ER4-30 QSFP-DD transceiver, nano-LAN-WDM 1310 nm band, 30 km over duplex single-mode fiber, LC, with digital diagnostics. Arista Transceiver and Cable GuideReviewed 2026-08-17 | Specification matchCheck host compatibility |
| SMARTOPTICS | TQD031-SN4C-SO | QDD-400G-ER4 | 400GBASE-ER4 QSFP-DD transceiver, nano-LAN-WDM 1310 nm band, 40 km over duplex single-mode fiber, LC, with digital diagnostics. QSFP-DD 400G-ER4 SM nLWDM 40km CMIS4.0Reviewed 2026-08-17 | Specification matchCheck host compatibility |