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QDD-400G-ZR Arista Compatible 400G QSFP-DD ZR 80km SMF Transceiver

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QDD-400G-ZR Arista Compatible 400G QSFP-DD ZR 80km SMF Transceiver

Please contact 10.4@tenfouroptics.com to get a price and order this item

Arista-compatible · QDD-400G-ZR-TFO

A like-for-like QSFP-DD replacement for the Arista QDD-400G-ZR, matched on its 400G coherent ZR line rate and its 80km single-mode reach. Slotting into the same QSFP-DD cage behind a duplex LC, it carries Arista host coding from the factory. Optical transmit and receive levels stay readable over DDM/DOM while in service.

  • Form Factor: QSFP-DD
  • Data Rate: 400G
  • Type: Coherent ZR
  • Protocol: ZR
  • Fiber Type: SMF
  • Reach: 80km
  • Connector: Duplex LC
  • OEM Equivalent: QDD-400G-ZR

Qualified Arista hosts — per Arista's own Transceiver and Cable Guide, platform support table for 400G-ZR modules. Arista's port, airflow, and ambient conditions are part of the qualification — they are listed because they matter:

Arista host Condition
7800R3(K)-36D(M)-LC line cards All 36 ports
7800R3A(K)-36D(M)-LC line cards All 36 ports
7280DR3-24 Top row (odd ports) only, with bottom-row modules at or below 12W
7280CR3(M)(K)-32D4(S) The four 400G ports; front-to-back airflow only
7280CR3(K)-36S Two 400G ports; 35°C maximum ambient
7280DR3A(M)(K)-36 All 400G ports
7280DR3A(M)(K)-54 Top row, with all other ports below 12W
7060DX4-32 Per the guide's table

Add your exact platform, port, airflow direction, and ambient in the order notes, or email 10.4@tenfouroptics.com, and we confirm fit before it ships.

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

Sparing stays one-for-one against the OEM unit, and the coherent ZR span keeps 400G moving across metro and inter-site links on the single-mode already in the ground. Each module is built to the governing MSA and validated per serial — coding, diagnostics, transmit performance — before it leaves the bench. Every unit is covered 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.

Download datasheet (PDF)

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