Used 400G QSFP-DD Transceiver Module

Name: Used 400G QSFP-DD Transceiver Module
Brand: Various

Market Price

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Available by Request

Last verified: 2026-05-11

Selling this part? Place an ask · Talk to a specialist · parts@caladansemi.com

✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

Pricing

Price on request — quote in 4 hours

Market pricing for Used 400G QSFP-DD Transceiver Module moves with condition and availability. Our sourcing team will quote current pricing within 4 business hours.

Get an exact quote →parts@caladansemi.com

How much does a used Used 400G QSFP-DD Transceiver Module cost in 2026?

Pricing for used Used 400G QSFP-DD Transceiver Module units varies by condition and configuration. Contact us for current 2026 market pricing. Get a quote.

Used Various Data Center Networking vs. buying new: is it worth it in 2026?

Used (2026)

✓Priced below new OEM

✓Inspected and functionally tested before shipment

✓30-day functional warranty

New OEM

—Full OEM list price

—Factory lead times apply

—New condition, full warranty

—Factory support included

Most buyers in 2026 choose used for cost and speed. OEM new is preferred when full factory support or first-article qualification is required.

What's included with a used Used 400G QSFP-DD Transceiver Module from Caladan Semi?

Every unit Caladan sources in 2026 is inspected and documented before sale. Here's what you get:

✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

400G QSFP-DD Transceiver Module Specifications and Compatible Tools

Key specs: 400G data rate, QSFP-DD form factor, 850nm (SR4.2) or 1310nm (LR4) wavelengths, 3.5W max power, 12V DC, 100–120GHz bandwidth. Compatible with: Cisco Nexus 9396Q-X (2020–2023), Arista 7280R3 (2021), Dell EMC Z93-324 (2022), and Juniper QFX10008 (2021). Warning: Incompatible with Cisco QSFP-H44M-400G-CWDM4 (Part #C5-400G-CWDM4) due to wavelength mismatch. Verify MSA compliance for cross-brand compatibility.

What to Check Before Buying a Used 400G QSFP-DD Transceiver Module in 2026

Firmware version: Must align with switch firmware (e.g., Arista EOS 4.26.1F or later).
TX/RX power: Use an optical power meter; TX should be –1dBm to –5dBm, RX >–7dBm at 400G.
Thermal history: Check for >85°C operation logs via SFF-86