Used 400G QSFP-DD Transceiver Module

Name: Used 400G QSFP-DD Transceiver Module
Brand: Various
Price: 850 USD
Availability: InStock

Market Price

→ Stable

$200–$2K

Typical secondary market pricing · USD

Low $200Avg $850High $1,500

Save 50-70% vs OEM new

Aggregated from secondary market sources · Not a guaranteed offer

Available by Request

Last verified: 2026-05-11

Request Quote · $200 – $2K

Talk to a specialist · parts@caladansemi.com

✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

Market Data

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

A used Used 400G QSFP-DD Transceiver Module from Various typically sells for $200 – $2k on the secondary market in 2026. That's a savings of 50-70% compared to new OEM pricing. Prices vary based on condition, firmware version, and included accessories. Request a quote for current availability.

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

Used (2026)

✓Save 50-70% vs. new OEM

✓Lead time: 2-4 weeks

✓Condition: B grade

✓30-day functional warranty

New OEM

—Full OEM price (1–2.5× used)

—Lead times: 12–52 weeks

—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:

✓Grade B — good working condition, normal wear
✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Estimated lead time: 2-4 weeks after sourcing confirmation
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

How Much Does Used 400G QSFP-DD Transceiver Module Cost in 2026?

Used modules range from $500 to $1,200 in 2026, depending on brand and condition. Refurbished units with factory calibration certificates cost $800–$1,500, offering 82–95% savings over new ($3,000–$4,500 MSRP). Modules with >500 hot-swap cycles may drop prices by 15–20%. Caveat: Units with >12 months in high-humidity environments (>60% RH) risk corrosion on gold contacts, reducing reliability by 30–40%.

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