Axiom Memory QDD-2X400G-LR4-P-AX 800G 2x400G LR4 QSFP-DD Transceiver

Name: Axiom Memory QDD-2X400G-LR4-P-AX 800G 2x400G LR4 QSFP-DD Transceiver
Brand: Axiom Memory
SKU: QDD-2X400G-LR4-P-AX
Price: 4761.91 USD
Availability: BackOrder

Axiom Memory|

MPN: QDD-2X400G-LR4-P-AX

UPC: 198105033112

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$4,761.91$6,154.00

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Key Features

800G QSFP-DD host-side interface
2 x 400G LR4 optical link configuration
10 km reach over single-mode fiber
2 x LC duplex optical connectors
1271 nm to 1331 nm wavelength range
Juniper-compatible coding

Provide two 400G LR4 optical links from one 800G QSFP-DD host interface with a single transceiver. The Axiom Memory QDD-2X400G-LR4-P-AX is a Juniper-compatible 800G 2x400G LR4 optic for single-mode fiber runs up to 10 km. Its QSFP-DD electrical interface connects at the host side, while two LC duplex optical connectors present the two 400G link paths at the cabling side. This optic fits architectures that need to fan out an 800G port into paired 400G uplinks without allocating two separate host ports. The LR4 optical format supports longer fiber paths than short-reach parallel-fiber connections, including inter-building, campus, and extended data center backbone links where single-mode fiber is already in place. The listed optical wavelength range is 1271 nm to 1331 nm. Within a high-speed QSFP-DD optic deployment, the defining characteristics are its dual 400G breakout arrangement, LR4 signaling, 10 km reach, and LC duplex fiber presentation. Those details matter when matching host-port density, remote interface count, fiber type, connector format, and link distance. Juniper compatibility makes this module appropriate where the connected equipment requires a Juniper-compatible optical transceiver profile.

Ideal For

Splitting an 800G spine or core port into two 400G aggregation links.
Connecting data center buildings across up to 10 km of installed single-mode fiber.
Providing paired 400G uplinks where LC duplex fiber terminations are required.
Deploying Juniper-compatible optics in high-density QSFP-DD network equipment.

Why This Product

1Breaks out one 800G QSFP-DD interface into two independent 400G LR4 links.
2Uses LR4 optics for up to 10 km over single-mode fiber.
3Presents two LC duplex optical connections rather than a single optical path.
4Carries Juniper-compatible coding for matching equipment environments.

Shipping

Shipping Weight

0.22 lb

Interfaces

Host Form Factor	QSFP-DD
Optical Connectors	2 x LC duplex

Compatibility

Equipment Compatibility

100% Juniper compatible

Identification

UPC	UPC 198105033112

Optical Performance

Data Rate	800 Gbps aggregate
Fiber Type	Single-mode fiber (SMF)
Maximum Reach	10 km
Wavelength Range	1271 nm to 1331 nm
Link Configuration	2 x 400G LR4

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Frequently Asked Questions

How do I confirm QDD-2X400G-LR4-P-AX is the right part for my deployment?▾

Match the host equipment to a QSFP-DD optical interface, confirm that the design needs two 400G LR4 links from one 800G port, and verify single-mode fiber with LC duplex terminations. The planned fiber distance must be within the 10 km optical reach.

What link configuration does this 800G optic provide?▾

The module provides an aggregate 800G QSFP-DD host-side connection that breaks out into two 400G LR4 optical links. Each 400G path uses an LC duplex connector, allowing two separate duplex single-mode fiber connections from the module.

What fiber and connector type does the transceiver require?▾

Use single-mode fiber for the optical links. The transceiver has two LC duplex optical connectors, one for each 400G LR4 connection. Confirm that the installed fiber plant has compatible LC duplex terminations at both ends of each link.

How far can the LR4 links reach?▾

Each listed LR4 optical connection supports a maximum reach of 10 km over single-mode fiber. Account for the complete channel path, including patch panels, splice loss, connector loss, and the actual installed fiber route when planning the link.