• 400G QSFP-DD LR4 10KM Optical Transceiver
400G QSFP-DD LR4 10KM Optical Transceiver

400G QSFP-DD LR4 10KM Optical Transceiver

Product Details:

Place of Origin: China, Shenzhen
Brand Name: DF/OEM/Nuetral
Certification: CE/ROHS/REACH/ISO9001/ISO14001
Model Number: TKQD3140X-3LCD10

Payment & Shipping Terms:

Minimum Order Quantity: negotiable
Price: negotiable denpend on QTY
Packaging Details: Blister box+Carton
Delivery Time: 5-9 working days depends on QTY
Payment Terms: Western Union, T/T, MoneyGram/Paypal
Supply Ability: 1000PCS/Day
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Detail Information

Product Name: 400G QSFP-DD LR4 10KM Optical Transceiver Supply Voltage: 3.14 3.46
Power Consumption: 12W Lane Wavelength Range: 1271 1291 1311 1331
Signal Rate Per Lane: 53.125 Average Launch Power Per Lane: -2.7 、5.1
Total Average Launch Power: 11.1 DBm Relative Intensity Noise (OMA): -136 DB/Hz
Operating Temperature: 0 ~ +70℃ Optical Return Loss Tolerance: 15.6 DB
Transmitter Reflectance: -26 DB Transmitter Transition Time: 17 Ps
Warranty: 1 Years, Lifetime Maintenance Fiber Brand: Corning, YOFC, OFS, Draka
Highlight:

400G QSFP-DD LR4 optical transceiver

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10KM QSFP-DD optical module

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LR4 400G transceiver with warranty

Product Description

400G QSFP-DD LR4 10KM Optical Transceiver
Product Overview

This 400Gb/s QSFP-DD optical module is designed for 10km optical communication applications. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals and multiplexes them into a single channel for 400Gb/s optical transmission.

On the receiver side, the module optically de-multiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals and converts them to 8 channels of 50Gb/s (PAM4) electrical output data.

The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. Host FEC is required to support up to 10km fiber transmission.

Applications
  • 400G BASE-LR4 Ethernet
  • Data Center Interconnect
  • Enterprise Networking
Features
  • Compliant with QSFP-DD MSA
  • Compliant with 100G Lambda MSA 400G-LR4 Specification compliant
  • Compliant with CMIS5.0
  • Compliant with IEEE Std 802.3bs
  • 8x53.125Gb/s electrical interface (400GAUI-8)
  • Cooled EML laser with CWDM wavelength
  • Up to 10km transmission on single mode fiber (SMF) with FEC
  • Single +3.3V power supply
  • Case temperature range: 0 ~ +70℃
  • Maximum power consumption 12W
  • Duplex LC connector
  • RoHS complaint
Operating Conditions
Parameter Symbol Min Max Unit
Case Temperature - Operating TCASE 0 70 ⁰C
Supply Voltage Vcc 3.14 3.46 V
Power Consumption PDISS 12 W
Pre-FEC Bit Error Ratio 2.4x10-4
Link Distance 2 10,000 M
Optical Characteristics
Transmitter Parameters
Parameter Lane Min Typical Max Units
Lane Wavelength Range Lane 0 1264.5 1271 1277.5 nm
Lane 1 1284.5 1291 1297.5 nm
Lane 2 1304.5 1311 1317.5 nm
Lane 3 1324.5 1331 1337.5 nm
Signal rate per lane 53.125 GBd
Average launch Power per lane -2.7 5.1 dBm
Total Average launch power 11.1 dBm
Outer Optical Modulation Amplitude (OMAouter) 0.3-1.1+TDECQ 4.4 dBm
Difference in launch power between any two lanes (OMAouter) 4 dB
Average Launch Power per Lane @ TX Off State -16 dBm
Transmitter Eye Closure for PAM4(TECQ), each Lane 3.9 dB
Transmitter and dispersion Eye Closure for PAM4(TDECQ), each Lane 3.9 dB
|TDECQ - TECQ| 2.5 dB
Extinction Ratio 3.5 dB
Relative Intensity Noise (OMA) -136 dB/Hz
Side-Mode Suppression Ration (SMSR) 30 dB
Optical Return Loss Tolerance 15.6 dB
Transmitter Reflectance -26 dB
Transmitter over/under-shoot 25 %
Transmitter peak-to-peak power 5.2 dBm
Transmitter transition time 17 ps
Receiver Optical Specifications
Parameter Lane Min Typical Max Units
Lane Wavelength Range Lane 0 1264.5 1271 1277.5 nm
Lane 1 1284.5 1291 1297.5 nm
Lane 2 1304.5 1311 1317.5 nm
Lane 3 1324.5 1331 1337.5 nm
Signal rate per lane 53.125 GBd
Damage Threshold 6.1 dBm
Average Receive Power, each lane -9 5.1 dBm
Receiver Power, each lane (OMA) 4.4 dBm
Receiver Reflectance -26 dB
Difference in receive Power between any Two Lanes(OMAouter) 4.3 dBm
Receiver Sensitivity each lane (OMAouter) -6.8-8.2+TECQ dBm
Stressed Receiver Sensitivity (OMAouter), each -4.3 dBm
Electrical Characteristics
Parameter Min Typical Max Unit Notes
Signaling rate per lane 26.5625 GBd
AC common-mode output voltage(RMS) - 17.5 mV
Differential peak-to-peak output voltage 900 mV
Near-end ESMW (Eye symmetry mask width) 0.265 UI
Near-end Eye height, differential 70 mV
Near-end vertical eye closure 7.5 dB
Far-end ESMW (Eye symmetry mask width) 0.20 UI
Far-end Eye height, differential 30 mV
Far-end vertical eye closure 7.5 dB
Far-end pre-cursor ISI ratio -4.5 2.5 %
Common mode to differential conversion return loss 802.3 Equation(83E-3) dB
Differential output return loss 802.3 Equation(83E-2) dB
Differential termination mismatch 10 %
Transition time (min, 20% to 80%) 9.5 ps
DC common mode voltage -350 2850 mV
Ordering Information
Part Number Description
TKQD3140X-3LCD10 400G QSFP-DD LR4 Optical Transceiver
Product Images
400G QSFP-DD LR4 10KM Optical Transceiver 0 400G QSFP-DD LR4 10KM Optical Transceiver 1 400G QSFP-DD LR4 10KM Optical Transceiver 2
Why Choose TAKFLY
  • 26+ years of manufacturing experience in fiber optic products
  • 450+ assembly workers with 3+ years of experience
  • 10+ R&D Engineers dedicated to innovation
  • 16 Germany-imported Injection Machines and production lines
  • 30+ testing machines including OTDR, 3D, VFL, IL&RL test instruments
  • Comprehensive testing equipment: tension strength testers, crush resistance testers, power meter testers, light checkers
  • OEM branding accepted
  • Global exhibition participation: OFC, ECOC, CommunicAsia, NETCOM, AFRICACOM, SVIAZ ICT, CommunicIndonesia, Global Source Electronic Exhibition
Quality Control
  • Raw material spot checking before production
  • Full inspection after every individual process
  • Comprehensive half-done production checks
  • Complete finished product inspection before packing
  • Pre-shipping spot checks
Delivery Information
  • Samples: 1-3 working days
  • Mass Production Orders: 3-7 working days
  • Packaging: Plastic bags, cartons, and pallets available per request
Frequently Asked Questions
Q1: How can I get your catalogue and price list?

Please provide your email or contact information through our website to receive our catalogue and price list.

Q2: Can I negotiate the prices?

Yes, we may consider discounts for multiple container loads of mixed goods.

Q3: How much will the shipping charges be?

Shipping charges depend on your shipment size and shipping method. We will provide charges upon request.

Q4: Can I visit you?

Certainly! Our factory is located in Shenzhen, China. Please contact us to schedule an appointment.

Q5: What if there is quality problem when we get the goods?

If you encounter quality issues upon unpacking, please take photos for our reference. Our QC department will investigate and provide the best solutions, along with implementing quality improvements for future production.

Q6: What is your terms of packing?

We typically pack goods in blister boxes and cartons, but can accommodate custom packaging requests from customers.

Q7: What is your terms of payment?

T/T 30% as deposit, and 70% balance before delivery. We provide photos of products and packaging before final payment.

Q8: What is your terms of delivery?

EXW, FOB, CFR, CIF, DDU

Q9: How about your delivery time?

Generally 5-7 working days after receiving advance payment. Specific delivery time depends on items and order quantity.

Q10: Can you produce according to the samples?

Yes, we can manufacture products based on your samples or technical drawings.

If you're interested in our products or have any questions, feel free to contact us at any time!

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
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All Reviews

I
i*n
Denmark Nov 8.2025
Great product, works really well in our data center!
S
s*a
Spain Nov 7.2025
Super!
J
John
United Kingdom Nov 6.2025
Good quality and good service, working well, thank you!

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