Juniper QDD-400G-LR8A Compatible 400G QSFP-DD LR8 10km SMF Transceiver Module

The QDD-400G-LR8A is a 400G optical optical transceiver engineered as a drop-in equivalent for Juniper platforms, and is fully interoperable on Juniper switching and routing gear, hot-swappable with zero host configuration.

• Data Rate: 400G
• Wavelength: 1309nm
• Reach: 10km
• Connector: LC/UPC

Compatibility: Documented OEM compatibility (Juniper published compatibility documentation): this module is accepted in 400G QSFP-DD ports on the ACX7100 (ACX Series), MX10004/MX10008 (MX Series), PTX10000 Series, QFX5130 Series, QFX5220 Series, and QFX5700 Series. Confirm your exact chassis, line card, and OS release against the Juniper matrix before deployment.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

It is qualified against Juniper host platforms and tested end to end so it behaves exactly as the OEM module it replaces, slotting into existing designs without surprises. The result is a like-for-like swap that protects the original network design while removing OEM-optics cost from the bill of materials. It operates 10km in the 1309nm window.

It is programmed to present native host values, so it interoperates link-to-link with OEM modules on the far end and coexists with installed optics in the same line card without compatibility flags.

We program each module to the Juniper host EEPROM and run it through traffic, DOM, and optical-cleanliness checks before it ships. Class 1 laser certified and RoHS compliant.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day — contact 10.4@tenfouroptics.com to confirm availability and lead time.