40G QSFP+ Transceivers Product Detail
40G QSFP+ CWDM4 / IR4 is a QSFP+ CWDM4 / IR4 option using Duplex LC for 2km single-mode fiber links.
Use the published model direction and key parameters for selection and sample planning. Confirm compatibility coding, optional temperature grade, and production parameters in the formal specification or order document.
Specs & Features
For the latest specification and samples, contact sales@staricatech.com.
40G QSFP+ CWDM4 / IR4 is designed for 2km links using Duplex LC. Selection must confirm the host form factor, electrical interface, PMD, FEC, fiber mapping, power and thermal limits, software version and the remote endpoint; the model name alone does not establish interoperability.
Selection FAQ
No. The wavelengths are multiplexed inside the module and presented on Duplex LC, so it drops into an ordinary duplex single-mode link. External filters are only needed when you combine separate single-channel modules onto one fiber.
Both run over duplex single-mode fiber, so the difference is engineering margin rather than fiber type. 40G QSFP+ CWDM4 / IR4 is listed for 2km; an LR variant targets 10km. Compare the measured link budget instead of choosing on the label.
Give the host vendor, model and software version at both ends, the QSFP+ port or lane mode, the operating temperature range, the quantity per site and the target delivery date. For 40G QSFP+ CWDM4 / IR4 also state the link distance, fiber type and connector already installed. Compatibility is confirmed per platform, so the host details matter as much as the optical specification.
Related Products
40G QSFP+ PSM4 is a QSFP+ PSM4 option using MPO-12 for 500m single-mode fiber links.
40G QSFP+ LR4 is a QSFP+ LR4 option using Duplex LC for 10km single-mode fiber links.
100G QSFP28 CWDM4 is a QSFP28 CWDM4 option using Duplex LC for 2km single-mode fiber links.
